LEFSCHETZ PROPERTIES FOR ARTINIAN GORENSTEIN ALGEBRAS PRESENTED BY QUADRICS

被引:23
|
作者
Gondim, Rodrigo [1 ]
Zappala, Giuseppe
机构
[1] Univ Fed Rural Pernambuco, Av Don Manoel Medeiros S-N, BR-52171900 Recife, PE, Brazil
关键词
WEAK; HYPERSURFACES;
D O I
10.1090/proc/13822
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We introduce a family of Artinian Gorenstein algebras, whose combinatorial structure characterizes the ones presented by quadrics. Under certain hypotheses these algebras have non-unimodal Hilbert vector. In particular we provide families of counterexamples to the conjecture that Artinian Gorenstein algebras presented by quadrics should satisfy the weak Lefschetz property.
引用
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页码:993 / 1003
页数:11
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