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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.
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页码:993 / 1003
页数:11
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