Cohomological jump loci and duality in local algebra
Cohomological jump loci and duality in local algebra
复制标题
局部代数中的上同调跳跃轨迹和对偶性
DOI:
10.1007/s00209-023-03276-9
复制
发表时间:
2023
影响因子:
0.8
通讯作者:
Pollitz, Josh
中科院分区:
文献类型:
--
作者:
Briggs, Benjamin;McCormick, Daniel;Pollitz, Josh
In this article a higher order support theory, called thecohomological jump loci, is introduced and studied for dg modules over a Koszul extension of a local dg algebra. The generality of this setting applies to dg modules over local complete intersection rings, exterior algebras and certain group algebras in prime characteristic. This family of varieties generalizes the well-studied support varieties in each of these contexts. We show that cohomological jump loci satisfy several interesting properties, including being closed under (Grothendieck) duality. The main application of this support theory is that over a local ring the homological invariants of Betti degree and complexity are preserved under duality for finitely generated modules having finite complete intersection dimension.
登录
查看更多内容
影响因子:
1.7
作者:
J.P.C.Greenlees;Greg Stevenson
通讯作者:
Greg Stevenson
DOI:
10.1090/s0002-9947-2014-06121-7
发表时间:
2012
期刊:
arXiv: Representation Theory
影响因子:
--
作者:
J. Carlson;S. Iyengar
通讯作者:
S. Iyengar
影响因子:
0.6
作者:
David A. Jorgensen
通讯作者:
David A. Jorgensen
影响因子:
0.9
作者:
Eisenbud, David;Peeva, Irena;Schreyer, Frank-Olaf
通讯作者:
Schreyer, Frank-Olaf
DOI:
--
发表时间:
1976
期刊:
影响因子:
--
作者:
V. Mehta
通讯作者:
V. Mehta