Thompson groups: Difference between revisions
Undid revision 481709627 by 130.225.103.21 (talk)---it is indeed Richard Thompson, not JG (e.g. read the AMS notices article) |
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{{for|the unrelated infinite simple groups found by Richard Thompson|Thompson groups}} | |||
{{Group theory sidebar}} | |||
In [[group theory]], the '''Thompson group''' ''Th'', found by {{harvs|txt |authorlink=John G. Thompson |first=John G. |last=Thompson |year=1976}} and constructed by {{harvtxt|Smith|1976}}, is a [[sporadic group|sporadic]] [[simple group]] of [[order (group theory)|order]] | |||
: 2<sup>15</sup>{{·}}3<sup>10</sup>{{·}}5<sup>3</sup>{{·}}7<sup>2</sup>{{·}}13{{·}}19{{·}}31 | |||
: = 90745943887872000 | |||
: ≈ 9{{·}}10<sup>16</sup>. | |||
Thompson and Smith constructed the Thompson group as the group of automorphisms of a certain lattice in the 248-dimensional Lie algebra of E<sub>8</sub>. It does not preserve the Lie bracket of this lattice, but does preserve the Lie bracket mod 3, so is a subgroup of the [[Chevalley group]] E<sub>8</sub>(3). The subgroup preserving the Lie bracket (over the integers) is a maximal subgroup of the Thompson group called the [[Dempwolff group]] (which unlike the Thompson group is a subgroup of the compact Lie group E<sub>8</sub>). | |||
The centralizer of an element of order 3 of type 3C in the [[Monster group]] is a product of the Thompson group and a group of order 3, as a result of which the Thompson group acts on a [[vertex operator algebra]] over the field with 3 elements. This vertex operator algebra contains the E<sub>8</sub> Lie algebra over '''F'''<sub>3</sub>, giving the embedding of ''Th'' into E<sub>8</sub>(3). | |||
The [[Schur multiplier]] and the [[outer automorphism group]] of the Thompson group are both trivial. | |||
The Thompson group contains the [[Dempwolff group]] as a maximal subgroup. | |||
{{harvtxt|Linton|1989}} found the 16 classes of maximal subgroups of the Thompson group, as follows: | |||
*<math> 2_+^{1+8}\cdot A_9</math>, | |||
*<math>2^5\cdot L_5(2)</math>, | |||
*<math>(3\times G_2(3)): 2</math>, | |||
*<math>(3^3\times 3_+^{1+2})\cdot 3_+^{1+2}: 2S_4</math>, | |||
*<math>3^2\cdot 3^7:2S_4</math>, | |||
*<math>(3\times 3^4:2\cdot A_6): 2</math>, | |||
*<math>5_+^{1+2}: 4S_4</math>, | |||
*<math>5^2:GL_2(5)</math>, | |||
*<math>7^2:(3\times 2S_4)</math>, | |||
*<math>31:15</math>, | |||
*[[³D₄|<math>{}^3D_4(2): 3</math>]], | |||
*<math>U_3(8): 6</math>, | |||
*<math>L_2(19)</math>, | |||
*<math>L_3(3)</math>, | |||
*<math>M_{10}</math>, | |||
*<math>S_5</math>. | |||
==References== | |||
*{{Citation | last1=Linton | first1=Stephen A. | title=The maximal subgroups of the Thompson group | doi=10.1112/jlms/s2-39.1.79 | mr=989921 | year=1989 | journal=Journal of the London Mathematical Society. Second Series | issn=0024-6107 | volume=39 | issue=1 | pages=79–88}} | |||
*{{Citation | last1=Smith | first1=P. E. | title=A simple subgroup of M? and E<sub>8</sub>(3) | doi=10.1112/blms/8.2.161 | mr=0409630 | year=1976 | journal=The Bulletin of the London Mathematical Society | issn=0024-6093 | volume=8 | issue=2 | pages=161–165}} | |||
*{{Citation | last1=Thompson | first1=John G. | author1-link=John G. Thompson | title=A conjugacy theorem for E<sub>8</sub> | doi=10.1016/0021-8693(76)90235-0 | mr=0399193 | year=1976 | journal=[[Journal of Algebra]] | issn=0021-8693 | volume=38 | issue=2 | pages=525–530}} | |||
== External links == | |||
* [http://mathworld.wolfram.com/ThompsonGroup.html MathWorld: Thompson group] | |||
* [http://brauer.maths.qmul.ac.uk/Atlas/v3/spor/Th/ Atlas of Finite Group Representations: Thompson group] | |||
[[Category:Sporadic groups]] |
Revision as of 23:14, 30 January 2014
28 year-old Painting Investments Worker Truman from Regina, usually spends time with pastimes for instance interior design, property developers in new launch ec Singapore and writing. Last month just traveled to City of the Renaissance. Template:Group theory sidebar
In group theory, the Thompson group Th, found by Template:Harvs and constructed by Template:Harvtxt, is a sporadic simple group of order
- 215Template:·310Template:·53Template:·72Template:·13Template:·19Template:·31
- = 90745943887872000
- ≈ 9Template:·1016.
Thompson and Smith constructed the Thompson group as the group of automorphisms of a certain lattice in the 248-dimensional Lie algebra of E8. It does not preserve the Lie bracket of this lattice, but does preserve the Lie bracket mod 3, so is a subgroup of the Chevalley group E8(3). The subgroup preserving the Lie bracket (over the integers) is a maximal subgroup of the Thompson group called the Dempwolff group (which unlike the Thompson group is a subgroup of the compact Lie group E8).
The centralizer of an element of order 3 of type 3C in the Monster group is a product of the Thompson group and a group of order 3, as a result of which the Thompson group acts on a vertex operator algebra over the field with 3 elements. This vertex operator algebra contains the E8 Lie algebra over F3, giving the embedding of Th into E8(3).
The Schur multiplier and the outer automorphism group of the Thompson group are both trivial.
The Thompson group contains the Dempwolff group as a maximal subgroup.
Template:Harvtxt found the 16 classes of maximal subgroups of the Thompson group, as follows:
References
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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