Convex cones and SAGBI bases of permutation invariants
Convex cones and SAGBI bases of permutation invariants
复制标题
凸锥体和排列不变量的 SAGBI 基
DOI:
10.1090/crmp/035/19
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发表时间:
2006
期刊:
影响因子:
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通讯作者:
Stéphan Thomassé
中科院分区:
文献类型:
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作者:
Nicolas M. Thiéry;Stéphan Thomassé
Let G be a permutation group acting on {1,...,n}, and < be any admissible term order on the polynomial ring K[x_1,...,x_n]. We prove that the invariant ring K[x_1,...,x_n]^G of G has a finite SAGBI basis if, and only if, G is generated by reflections.