On the growth of deviations
On the growth of deviations
复制标题
论偏差的增长
DOI:
10.1090/proc/13132
复制
发表时间:
2016
影响因子:
1
通讯作者:
Boocher A
中科院分区:
文献类型:
--
作者:
Boocher A
The deviations of a graded algebra are a sequence of integers that determine the Poincaré series of its residue field and arise as the number of generators of certain DG algebras. In a sense, deviations measure how far a ring is from being a complete intersection. In this paper, we study extremal deviations among those of algebras with a fixed Hilbert series. In this setting, we prove that, like the Betti numbers, deviations do not increase when passing to an initial ideal and are maximized by the lex-segment ideal. We also prove that deviations grow exponentially for Golod rings and for certain quadratic monomial algebras. References
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Banach Center Publications
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