Stanley decomposition
In commutative algebra, a Stanley decomposition is a way of writing a ring in terms of polynomial subrings. They were introduced by Richard Stanley (1982).
Definition
Suppose that a ring R is a quotient of a polynomial ring k[x1,...] over a field by some ideal. A Stanley decomposition of R is a representation of R as a direct sum (of vector spaces)
where each xα is a monomial and each Xα is a finite subset of the generators.
See also
References
- Stanley, Richard P. (1982), "Linear Diophantine equations and local cohomology", Invent. Math., 68 (2): 175–193, MR 0666158, doi:10.1007/bf01394054
- Sturmfels, Bernd; White, Neil (1991), "Computing combinatorial decompositions of rings", Combinatorica, 11 (3): 275–293, MR 1122013, doi:10.1007/BF01205079
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