Local Euler obstructions for determinantal varieties
Local Euler obstructions for determinantal varieties
复制标题
行列式簇的局部欧拉障碍
DOI:
10.1016/j.topol.2021.107984
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发表时间:
2022
影响因子:
0.6
通讯作者:
Raicu, Claudiu
中科院分区:
文献类型:
--
作者:
Lőrincz, András C.;Raicu, Claudiu
The goal of this note is to explain a derivation of the formulas for the local Euler obstructions of determinantal varieties of general, symmetric and skew-symmetric matrices, by studying the invariant de Rham complex and using character formulas for simple equivariant D-modules. These calculations are then combined with standard arguments involving Kashiwara's local index formula and the description of characteristic cycles of simple equivariant D-modules. The formulas are implicit in the work of Boe and Fu, and in the case of general matrices they have also been obtained recently by Gaffney–Grulha–Ruas, for skew-symmetric matrices by Promtapan and Rimányi, and for all cases by Zhang.
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DOI:
10.1007/s00029-020-00616-z
发表时间:
2021
期刊:
Selecta Mathematica
影响因子:
--
作者:
Perlman, Michael;Raicu, Claudiu
通讯作者:
Raicu, Claudiu
DOI:
--
发表时间:
1997
期刊:
Canadian Journal of Mathematics - Journal Canadien de Mathematiques
影响因子:
--
作者:
Brian D. Boe;Joseph H. G. Fu
通讯作者:
Joseph H. G. Fu
影响因子:
3.1
作者:
V. Ginsburg
通讯作者:
V. Ginsburg
影响因子:
2.5
作者:
S. Evens;I. Mirkovic
通讯作者:
S. Evens;I. Mirkovic
DOI:
10.2140/ant.2014.8.1231
发表时间:
2013-09
期刊:
arXiv: Algebraic Geometry
影响因子:
--
作者:
Claudiu Raicu;J. Weyman
通讯作者:
Claudiu Raicu;J. Weyman