Firefly algorithm

In commutative algebra, the Rees algebra of an ideal $I$ in a ring $R$ is defined to be

$\underset{n=0}{\overset{\mathrm{\infty }}{\oplus }}{I}^n{t}^n=R[It]\subset R[t].$

This construction has special interest in algebraic geometry since the projective scheme defined by the Rees algebra of an ideal in a ring is the blowing-up of the spectrum of the ring along the subscheme defined by the ideal.

See also

• Associated graded ring

External links

• What Is the Rees Algebra of a Module?