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== | In mathematics, '''Macdonald polynomials''' ''P''<sub>λ</sub>(''x''; ''t'',''q'') are a family of [[orthogonal polynomials]] in several variables, introduced by {{harvs|txt|authorlink=Ian G. Macdonald|last=Macdonald|year=1987}}. Macdonald originally associated his polynomials with weights λ of finite root systems and used just one variable ''t'', but later realized that it is more natural to associate them with [[affine root system]]s rather than finite root systems, in which case the variable ''t'' can be replaced by several different variables ''t''=(''t''<sub>1</sub>,...,''t''<sub>''k''</sub>), one for each of the ''k'' orbits of roots in the affine root system. The Macdonald polynomials are polynomials in ''n'' variables ''x''=(''x''<sub>1</sub>,...,''x''<sub>''n''</sub>), where ''n'' is the rank of the affine root system. They generalize many other families of orthogonal polynomials, such as [[Jack polynomial]]s and [[Hall–Littlewood polynomial]]s and [[Askey–Wilson polynomials]], which in turn include most of the named 1-variable orthogonal polynomials as special cases. [[Koornwinder polynomials]] are Macdonald polynomials of certain non-reduced root systems. They have deep relationships with [[affine Hecke algebra]]s and [[Hilbert scheme]]s, which were used to prove several conjectures made by Macdonald about them. | ||
==Definition== | |||
First fix some notation: | |||
*''R'' is a finite [[root system]] in a real vector space ''V''. | |||
*''R<sup>+</sup>'' is a choice of [[root system#Positive_roots_and_simple_roots|positive roots]], to which corresponds a positive [[Weyl chamber]]. | |||
*''W'' is the [[Weyl group]] of ''R''. | |||
*''Q'' is the root lattice of ''R'' (the lattice spanned by the roots). | |||
*''P'' is the [[weight lattice]] of ''R'' (containing ''Q''). | |||
* An [[weight lattice#Ordering_on_the_space_of_weights|ordering on the weights]]: <math>\mu \le \lambda</math> if and only if <math>\lambda-\mu</math> is a nonnegative linear combination of [[Root_system#Positive_roots_and_simple_roots|simple roots]]. | |||
*''P<sup>+</sup>'' is the set of dominant weights: the elements of ''P'' in the positive Weyl chamber. | |||
*ρ is the [[Weyl vector]]: half the sum of the positive roots; this is a special element of ''P''<sup>+</sup> in the interior of the positive Weyl chamber. | |||
*''F'' is a field of characteristic 0, usually the rational numbers. | |||
*''A'' = ''F''(''P'') is the [[group algebra]] of ''P'', with a basis of elements written ''e''<sup>λ</sup> for λ ∈ ''P''. | |||
* If ''f'' = ''e''<sup>λ</sup>, then <span style="text-decoration: overline">''f''</span> means ''e''<sup>−λ</sup>, and this is extended by linearity to the whole group algebra. | |||
*''m''<sub>μ</sub> = Σ<sub>λ ∈ ''W''μ</sub>''e''<sup>λ</sup> is an orbit sum; these elements form a basis for the subalgebra ''A''<sup>''W''</sup> of elements fixed by ''W''. | |||
*<math>(a;q)_\infty = \prod_{r\ge0}(1-aq^r)</math>, the [[Q-Pochhammer symbol|infinite q-Pochhammer symbol]]. | |||
*<math>\Delta= \prod_{\alpha\in R} {(e^\alpha; q)_\infty \over (te^\alpha; q)_\infty}. </math> | |||
*<math>\langle f,g\rangle=(\text{constant term of }f \overline g \Delta)/|W|</math> is the inner product of two elements of ''A'', at least when ''t'' is a positive integer power of ''q''. | |||
= | The '''Macdonald polynomials''' ''P''<sub>λ</sub> for λ ∈ ''P''<sup>+</sup> are uniquely defined by the following two conditions: | ||
:<math>P_\lambda=\sum_{\mu\le \lambda}u_{\lambda\mu}m_\mu</math> where ''u''<sub>λμ</sub> is a rational function of ''q'' and ''t'' with ''u''<sub>λλ</sub> = 1; | |||
: ''P''<sub>λ</sub> and ''P''<sub>μ</sub> are orthogonal if λ < μ. | |||
In other words the Macdonald polynomials are obtained by orthogonalizing the obvious basis for ''A''<sup>''W''</sup>. The existence of polynomials with these properties is easy to show (for any inner product). A key property of the Macdonald polynomials is that they are '''orthogonal''': 〈''P''<sub>λ</sub>, ''P''<sub>μ</sub>〉 = 0 whenever λ ≠ μ. This is not a trivial consequence of the definition because ''P''<sup>+</sup> is not totally ordered, and so has plenty of elements that are incomparable. Thus one must check that the corresponding polynomials are still orthogonal. The orthogonality can be proved by showing that the Macdonald polynomials are eigenvectors | |||
for an algebra of commuting self adjoint operators with 1-dimensional eigenspaces, and using the fact that eigenspaces for different eigenvalues must be orthogonal. | |||
In the case of non-simply-laced root systems (B, C, F, G), the parameter ''t'' can be chosen to vary with the length of the root, giving a three-parameter family of Macdonald polynomials. One can also extend the definition to the nonreduced root system BC, in which case one obtains a six-parameter family (one ''t'' for each orbit of roots, plus ''q'') known as [[Koornwinder polynomials]]. It is sometimes better to regard Macdonald polynomials as depending on a possibly non-reduced affine root system. In this case there is one parameter ''t'' associated to each orbit of roots in the affine root system, plus one parameter ''q''. The number of orbits of roots can vary from 1 to 5. | |||
==Examples== | |||
*If ''q'' = ''t'' the Macdonald polynomials become the [[Weyl character]]s of the representations of the compact group of the root system, or the Schur functions in the case of root systems of type ''A''. | |||
*If ''q'' = 0 the Macdonald polynomials become the (rescaled) [[zonal spherical function]]s for a semisimple ''p''-adic group, or the [[Hall–Littlewood polynomials]] when the root system has type ''A''. | |||
*If ''t''=1 the Macdonald polynomials become the sums over ''W'' orbits, which are the monomial symmetric functions when the root system has type ''A''. | |||
*If we put ''t'' = ''q''<sup>α</sup> and let ''q'' tend to 1 the Macdonald polynomials become [[Jack polynomial]]s when the root system is of type ''A'', and [[Heckman–Opdam polynomials]] for more general root systems. | |||
*For the affine root system ''A''<sub>1</sub>, the Macdonald polynomials are the [[Rogers polynomials]]. | |||
*For the non-reduced rank 1 affine root system of type (''C''{{su|b=1|p=∨}}, ''C''<sub>1</sub>), the Macdonald polynomials are the [[Askey–Wilson polynomials]], which in turn include as special cases most of the named families of orthogonal polynomials in 1 variable. | |||
*For the non-reduced affine root system of type (''C''{{su|b=''n''|p=∨}}, ''C''<sub>''n''</sub>), the Macdonald polynomials are the | |||
[[Koornwinder polynomials]]. | |||
==The Macdonald constant term conjecture== | |||
If ''t'' = ''q''<sup>''k''</sup> for some positive integer ''k'', then the norm of the Macdonald polynomials is given by | |||
:<math>\langle P_\lambda, P_\lambda\rangle = \prod_{\alpha\in R, \alpha>0} \prod_{0<i<k} {1-q^{(\lambda+k\rho,2\alpha/(\alpha,\alpha))+i} \over 1-q^{(\lambda+k\rho,2\alpha/(\alpha,\alpha))-i}}.</math> | |||
This was conjectured by Macdonald (1982) as a generalization of the [[Dyson conjecture]], and proved for all (reduced) root systems by Cherednik (1995) using properties of [[double affine Hecke algebra]]s. The conjecture had previously been proved case-by-case for all roots systems except those of type ''E''<sub>''n''</sub> by several authors. | |||
There are two other conjectures which together with the norm conjecture are collectively referred to as the Macdonald conjectures in this context: in addition to the formula for the norm, Macdonald conjectured a formula for the value of ''P''<sub>λ</sub> at the point ''t''<sup>ρ</sup>, and a symmetry | |||
:<math>\frac{P_\lambda(\dots,q^{\mu_i}t^{\rho_i},\dots)}{P_\lambda(t^\rho)} | |||
= | |||
\frac{P_\mu(\dots,q^{\lambda_i}t^{\rho_i},\dots)}{P_\mu(t^\rho)}.</math> | |||
Again, these were proved for general reduced root systems by {{harvs|txt|last=Cherednik|year=1995|authorlink=Ivan Cherednik}}, using [[double affine Hecke algebra]]s, with the extension to the BC case following shortly thereafter via work of van Diejen, Noumi, and Sahi. | |||
==The Macdonald positivity conjecture== | |||
In the case of roots systems of type ''A''<sub>''n''−1</sub> the Macdonald polynomials | |||
can be identified with symmetric polynomials in ''n'' variables (with coefficients that are rational functions of ''q'' and ''t''). They can be expanded in terms of [[Schur function]]s, and the coefficients ''K''<sub>λμ</sub>(''q'',''t'') of these expansions are called '''Kostka–Macdonald coefficients'''. | |||
Macdonald conjectured that the Kostka–Macdonald coefficients were polynomials in ''q'' and ''t'' with non-negative integer coefficients. These conjectures are now proved; the hardest and final step was proving the positivity, which was done by [[Mark Haiman]] (2001), by proving the [[n! conjecture|''n''! conjecture]]. | |||
==n! conjecture== | |||
The [[n! conjecture|''n''! conjecture]] of [[Adriano Garsia]] and [[Mark Haiman]] states that for each partition μ of ''n'' the space | |||
:<math>D_\mu =C[\partial x,\partial y]\,\Delta_\mu</math> | |||
spanned by all higher partial derivatives of | |||
:<math>\Delta_\mu = \det (x_i^{p_j}y_i^{q_j})_{1\le i,j,\le n}</math> | |||
has dimension ''n''!, where (''p''<sub>''j''</sub>, ''q''<sub>''j''</sub>) run through the ''n'' elements of the diagram of the partition μ, regarded as a subset of the pairs of non-negative integers. | |||
For example, if μ is the partition 3 = 2 + 1 of ''n'' = 3 then the pairs (''p''<sub>''j''</sub>, ''q''<sub>''j''</sub>) are | |||
(0, 0), (0, 1), (1, 0), and the space ''D''<sub>μ</sub> is spanned by | |||
:<math>\Delta_\mu=x_1y_2+x_2y_3+x_3y_1-x_2y_1-x_3y_2-x_1y_3</math> | |||
:<math>y_2-y_3</math> | |||
:<math>y_3-y_1</math> | |||
:<math>x_3-x_2</math> | |||
:<math>x_1-x_3</math> | |||
:<math>1</math> | |||
which has dimension 6 = 3<nowiki>!</nowiki>. | |||
Haiman's proof of the Macdonald positivity conjecture and the ''n''! conjecture involved showing that the [[isospectral Hilbert scheme]] of ''n'' points in a plane was [[Cohen–Macaulay]] (and even [[Gorenstein ring|Gorenstein]]). Earlier results of Haiman and Garsia had already shown that this implied the ''n''! conjecture, and that the ''n''! conjecture implied that the Kostka–Macdonald coefficients were graded character multiplicities for the modules ''D''<sub>μ</sub>. This immediately implies the Macdonald positivity conjecture because character multiplicities have to be non-negative integers. | |||
Ian Grojnowski and Mark Haiman found another proof of the Macdonald positivity conjecture by proving a positivity conjecture for [[LLT polynomial]]s. | |||
==References== | |||
*{{Citation | last1=Cherednik | first1=Ivan | title=Double Affine Hecke Algebras and Macdonald's Conjectures | publisher=Annals of Mathematics | series=Second Series | year=1995 | journal=[[Annals of Mathematics]] | issn=0003-486X | volume=141 | issue=1 | pages= 191–216 | jstor=2118632 | doi=10.2307/2118632}} | |||
*{{citation|first1=Adriano |last1=Garsia |first2= Jeffrey B. |last2=Remmel |url=http://www.pnas.org/cgi/content/full/102/11/3891 |title=''Breakthroughs in the theory of Macdonald polynomials''|journal=PNAS |date=March 15, 2005|volume= 102|pages=3891–3894|issue= 11|doi=10.1073/pnas.0409705102}} | |||
*Mark Haiman [http://projecteuclid.org/Dienst/UI/1.0/Summarize/euclid.cdm/1088530398 ''Combinatorics, symmetric functions, and Hilbert schemes''] Current Developments in Mathematics 2002, no. 1 (2002), 39–111. | |||
* Haiman, Mark [http://math.berkeley.edu/~mhaiman/ftp/newt-sf-2001/newt.pdf ''Notes on Macdonald polynomials and the geometry of Hilbert schemes.''] Symmetric functions 2001: surveys of developments and perspectives, 1–64, NATO Sci. Ser. II Math. Phys. Chem., 74, Kluwer Acad. Publ., Dordrecht, 2002.{{MathSciNet|id=2005f:14010}} | |||
*{{citation|first=Mark|last=Haiman |arxiv=math.AG/0010246 |title=''Hilbert schemes, polygraphs, and the Macdonald positivity conjecture''|journal= J. Amer. Math. Soc. |volume=14 |year=2001|pages= 941–1006|doi=10.1090/S0894-0347-01-00373-3|issue=4}} | |||
*{{Citation | last1=Haglund | first1=J. | last2=Haiman | first2=M. | last3=Loehr | first3=N. | title=A combinatorial formula for Macdonald polynomials | doi=10.1090/S0894-0347-05-00485-6 | id={{MathSciNet | id = 2138143}} | year=2005 | journal=[[Journal of the American Mathematical Society]] | issn=0894-0347 | volume=18 | issue=3 | pages=735–761}} | |||
*{{citation|first=A. A. |last=Kirillov |url=http://www.ams.org/bull/1997-34-03/S0273-0979-97-00727-1/home.html |title=Lectures on affine Hecke algebras and Macdonald's conjectures|journal= [[Bull. Amer. Math. Soc.]] |volume=34 |year=1997|pages= 251–292|doi=10.1090/S0273-0979-97-00727-1|issue=3}} | |||
*{{Citation | last1=Macdonald | first1=I. G. | title=Some conjectures for root systems | doi=10.1137/0513070 | id={{MathSciNet | id = 674768}} | year=1982 | journal=SIAM Journal on Mathematical Analysis | issn=0036-1410 | volume=13 | issue=6 | pages=988–1007}} | |||
*Macdonald, I. G. ''Symmetric functions and Hall polynomials.'' Second edition. Oxford Mathematical Monographs. Oxford Science Publications. The Clarendon Press, Oxford University Press, New York, 1995. x+475 pp. ISBN 0-19-853489-2 {{MathSciNet|id=96h:05207}} | |||
*Macdonald, I. G. ''Symmetric functions and orthogonal polynomials.'' Dean Jacqueline B. Lewis Memorial Lectures presented at Rutgers University, New Brunswick, NJ. University Lecture Series, 12. American Mathematical Society, Providence, RI, 1998. xvi+53 pp. ISBN 0-8218-0770-6 {{MathSciNet|id=99f:05116}} | |||
*Macdonald, I. G. ''Affine Hecke algebras and orthogonal polynomials.'' Séminaire Bourbaki 797 (1995). | |||
*{{citation|last=Macdonald|first= I. G.|arxiv=math.QA/0011046|title= Orthogonal polynomials associated with root systems|journal= [[Séminaire Lotharingien de Combinatoire]]|volume= 45 |year=2000/01|pages= Art. B45a|id={{MathSciNet|id=2002a:33021}}}} | |||
*{{Citation | last=Macdonald | first=I. G. | title = Affine Hecke algebras and orthogonal polynomials | location=Cambridge | series=Cambridge Tracts in Mathematics | volume=157 | publisher=Cambridge University Press | year=2003 | pages=x+175 | isbn=978-0-521-82472-9| doi=10.2277/0521824729 | id={{MathSciNet|id=1976581}}}} | |||
==External links== | |||
*Mike Zabrocki's page about [http://garsia.math.yorku.ca/MPWP/ Macdonald polynomials]. | |||
*Some of [http://math.berkeley.edu/~mhaiman/ Haiman's papers] about Macdonald polynomials. | |||
[[Category:Algebraic combinatorics]] | |||
[[Category:Algebraic geometry]] | |||
[[Category:Orthogonal polynomials]] |
Latest revision as of 23:05, 9 April 2013
In mathematics, Macdonald polynomials Pλ(x; t,q) are a family of orthogonal polynomials in several variables, introduced by Template:Harvs. Macdonald originally associated his polynomials with weights λ of finite root systems and used just one variable t, but later realized that it is more natural to associate them with affine root systems rather than finite root systems, in which case the variable t can be replaced by several different variables t=(t1,...,tk), one for each of the k orbits of roots in the affine root system. The Macdonald polynomials are polynomials in n variables x=(x1,...,xn), where n is the rank of the affine root system. They generalize many other families of orthogonal polynomials, such as Jack polynomials and Hall–Littlewood polynomials and Askey–Wilson polynomials, which in turn include most of the named 1-variable orthogonal polynomials as special cases. Koornwinder polynomials are Macdonald polynomials of certain non-reduced root systems. They have deep relationships with affine Hecke algebras and Hilbert schemes, which were used to prove several conjectures made by Macdonald about them.
Definition
First fix some notation:
- R is a finite root system in a real vector space V.
- R+ is a choice of positive roots, to which corresponds a positive Weyl chamber.
- W is the Weyl group of R.
- Q is the root lattice of R (the lattice spanned by the roots).
- P is the weight lattice of R (containing Q).
- An ordering on the weights: if and only if is a nonnegative linear combination of simple roots.
- P+ is the set of dominant weights: the elements of P in the positive Weyl chamber.
- ρ is the Weyl vector: half the sum of the positive roots; this is a special element of P+ in the interior of the positive Weyl chamber.
- F is a field of characteristic 0, usually the rational numbers.
- A = F(P) is the group algebra of P, with a basis of elements written eλ for λ ∈ P.
- If f = eλ, then f means e−λ, and this is extended by linearity to the whole group algebra.
- mμ = Σλ ∈ Wμeλ is an orbit sum; these elements form a basis for the subalgebra AW of elements fixed by W.
- , the infinite q-Pochhammer symbol.
- is the inner product of two elements of A, at least when t is a positive integer power of q.
The Macdonald polynomials Pλ for λ ∈ P+ are uniquely defined by the following two conditions:
In other words the Macdonald polynomials are obtained by orthogonalizing the obvious basis for AW. The existence of polynomials with these properties is easy to show (for any inner product). A key property of the Macdonald polynomials is that they are orthogonal: 〈Pλ, Pμ〉 = 0 whenever λ ≠ μ. This is not a trivial consequence of the definition because P+ is not totally ordered, and so has plenty of elements that are incomparable. Thus one must check that the corresponding polynomials are still orthogonal. The orthogonality can be proved by showing that the Macdonald polynomials are eigenvectors for an algebra of commuting self adjoint operators with 1-dimensional eigenspaces, and using the fact that eigenspaces for different eigenvalues must be orthogonal.
In the case of non-simply-laced root systems (B, C, F, G), the parameter t can be chosen to vary with the length of the root, giving a three-parameter family of Macdonald polynomials. One can also extend the definition to the nonreduced root system BC, in which case one obtains a six-parameter family (one t for each orbit of roots, plus q) known as Koornwinder polynomials. It is sometimes better to regard Macdonald polynomials as depending on a possibly non-reduced affine root system. In this case there is one parameter t associated to each orbit of roots in the affine root system, plus one parameter q. The number of orbits of roots can vary from 1 to 5.
Examples
- If q = t the Macdonald polynomials become the Weyl characters of the representations of the compact group of the root system, or the Schur functions in the case of root systems of type A.
- If q = 0 the Macdonald polynomials become the (rescaled) zonal spherical functions for a semisimple p-adic group, or the Hall–Littlewood polynomials when the root system has type A.
- If t=1 the Macdonald polynomials become the sums over W orbits, which are the monomial symmetric functions when the root system has type A.
- If we put t = qα and let q tend to 1 the Macdonald polynomials become Jack polynomials when the root system is of type A, and Heckman–Opdam polynomials for more general root systems.
- For the affine root system A1, the Macdonald polynomials are the Rogers polynomials.
- For the non-reduced rank 1 affine root system of type (CTemplate:Su, C1), the Macdonald polynomials are the Askey–Wilson polynomials, which in turn include as special cases most of the named families of orthogonal polynomials in 1 variable.
- For the non-reduced affine root system of type (CTemplate:Su, Cn), the Macdonald polynomials are the
The Macdonald constant term conjecture
If t = qk for some positive integer k, then the norm of the Macdonald polynomials is given by
This was conjectured by Macdonald (1982) as a generalization of the Dyson conjecture, and proved for all (reduced) root systems by Cherednik (1995) using properties of double affine Hecke algebras. The conjecture had previously been proved case-by-case for all roots systems except those of type En by several authors.
There are two other conjectures which together with the norm conjecture are collectively referred to as the Macdonald conjectures in this context: in addition to the formula for the norm, Macdonald conjectured a formula for the value of Pλ at the point tρ, and a symmetry
Again, these were proved for general reduced root systems by Template:Harvs, using double affine Hecke algebras, with the extension to the BC case following shortly thereafter via work of van Diejen, Noumi, and Sahi.
The Macdonald positivity conjecture
In the case of roots systems of type An−1 the Macdonald polynomials can be identified with symmetric polynomials in n variables (with coefficients that are rational functions of q and t). They can be expanded in terms of Schur functions, and the coefficients Kλμ(q,t) of these expansions are called Kostka–Macdonald coefficients. Macdonald conjectured that the Kostka–Macdonald coefficients were polynomials in q and t with non-negative integer coefficients. These conjectures are now proved; the hardest and final step was proving the positivity, which was done by Mark Haiman (2001), by proving the n! conjecture.
n! conjecture
The n! conjecture of Adriano Garsia and Mark Haiman states that for each partition μ of n the space
spanned by all higher partial derivatives of
has dimension n!, where (pj, qj) run through the n elements of the diagram of the partition μ, regarded as a subset of the pairs of non-negative integers. For example, if μ is the partition 3 = 2 + 1 of n = 3 then the pairs (pj, qj) are (0, 0), (0, 1), (1, 0), and the space Dμ is spanned by
which has dimension 6 = 3!.
Haiman's proof of the Macdonald positivity conjecture and the n! conjecture involved showing that the isospectral Hilbert scheme of n points in a plane was Cohen–Macaulay (and even Gorenstein). Earlier results of Haiman and Garsia had already shown that this implied the n! conjecture, and that the n! conjecture implied that the Kostka–Macdonald coefficients were graded character multiplicities for the modules Dμ. This immediately implies the Macdonald positivity conjecture because character multiplicities have to be non-negative integers.
Ian Grojnowski and Mark Haiman found another proof of the Macdonald positivity conjecture by proving a positivity conjecture for LLT polynomials.
References
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Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010 - Mark Haiman Combinatorics, symmetric functions, and Hilbert schemes Current Developments in Mathematics 2002, no. 1 (2002), 39–111.
- Haiman, Mark Notes on Macdonald polynomials and the geometry of Hilbert schemes. Symmetric functions 2001: surveys of developments and perspectives, 1–64, NATO Sci. Ser. II Math. Phys. Chem., 74, Kluwer Acad. Publ., Dordrecht, 2002.Template:MathSciNet
- Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.
Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010 - Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.
Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010 - Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.
Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010 - Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.
Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010 - Macdonald, I. G. Symmetric functions and Hall polynomials. Second edition. Oxford Mathematical Monographs. Oxford Science Publications. The Clarendon Press, Oxford University Press, New York, 1995. x+475 pp. ISBN 0-19-853489-2 Template:MathSciNet
- Macdonald, I. G. Symmetric functions and orthogonal polynomials. Dean Jacqueline B. Lewis Memorial Lectures presented at Rutgers University, New Brunswick, NJ. University Lecture Series, 12. American Mathematical Society, Providence, RI, 1998. xvi+53 pp. ISBN 0-8218-0770-6 Template:MathSciNet
- Macdonald, I. G. Affine Hecke algebras and orthogonal polynomials. Séminaire Bourbaki 797 (1995).
- Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.
Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010 - Many property agents need to declare for the PIC grant in Singapore. However, not all of them know find out how to do the correct process for getting this PIC scheme from the IRAS. There are a number of steps that you need to do before your software can be approved.
Naturally, you will have to pay a safety deposit and that is usually one month rent for annually of the settlement. That is the place your good religion deposit will likely be taken into account and will kind part or all of your security deposit. Anticipate to have a proportionate amount deducted out of your deposit if something is discovered to be damaged if you move out. It's best to you'll want to test the inventory drawn up by the owner, which can detail all objects in the property and their condition. If you happen to fail to notice any harm not already mentioned within the inventory before transferring in, you danger having to pay for it yourself.
In case you are in search of an actual estate or Singapore property agent on-line, you simply should belief your intuition. It's because you do not know which agent is nice and which agent will not be. Carry out research on several brokers by looking out the internet. As soon as if you end up positive that a selected agent is dependable and reliable, you can choose to utilize his partnerise in finding you a home in Singapore. Most of the time, a property agent is taken into account to be good if he or she locations the contact data on his website. This may mean that the agent does not mind you calling them and asking them any questions relating to new properties in singapore in Singapore. After chatting with them you too can see them in their office after taking an appointment.
Have handed an trade examination i.e Widespread Examination for House Brokers (CEHA) or Actual Property Agency (REA) examination, or equal; Exclusive brokers are extra keen to share listing information thus making certain the widest doable coverage inside the real estate community via Multiple Listings and Networking. Accepting a severe provide is simpler since your agent is totally conscious of all advertising activity related with your property. This reduces your having to check with a number of agents for some other offers. Price control is easily achieved. Paint work in good restore-discuss with your Property Marketing consultant if main works are still to be done. Softening in residential property prices proceed, led by 2.8 per cent decline within the index for Remainder of Central Region
Once you place down the one per cent choice price to carry down a non-public property, it's important to accept its situation as it is whenever you move in – faulty air-con, choked rest room and all. Get round this by asking your agent to incorporate a ultimate inspection clause within the possibility-to-buy letter. HDB flat patrons routinely take pleasure in this security net. "There's a ultimate inspection of the property two days before the completion of all HDB transactions. If the air-con is defective, you can request the seller to repair it," says Kelvin.
15.6.1 As the agent is an intermediary, generally, as soon as the principal and third party are introduced right into a contractual relationship, the agent drops out of the image, subject to any problems with remuneration or indemnification that he could have against the principal, and extra exceptionally, against the third occasion. Generally, agents are entitled to be indemnified for all liabilities reasonably incurred within the execution of the brokers´ authority.
To achieve the very best outcomes, you must be always updated on market situations, including past transaction information and reliable projections. You could review and examine comparable homes that are currently available in the market, especially these which have been sold or not bought up to now six months. You'll be able to see a pattern of such report by clicking here It's essential to defend yourself in opposition to unscrupulous patrons. They are often very skilled in using highly unethical and manipulative techniques to try and lure you into a lure. That you must also protect your self, your loved ones, and personal belongings as you'll be serving many strangers in your home. Sign a listing itemizing of all of the objects provided by the proprietor, together with their situation. HSR Prime Recruiter 2010
External links
- Mike Zabrocki's page about Macdonald polynomials.
- Some of Haiman's papers about Macdonald polynomials.