Equivariant K-theory of Springer varieties

被引:0
|
作者
Uma, Vikraman [1 ]
机构
[1] Indian Inst Technol Madras, Dept Math, Chennai 600036, India
关键词
Springer varieties; Flag varieties; Equivariant K-theory; Equivariant cohomology; CONJUGACY CLASSES; REPRESENTATIONS;
D O I
10.1016/j.topol.2023.108784
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The aim of this paper is to describe the topological equivariant K-ring, in terms of generators and relations, of a Springer variety F lambda of type A associated to a nilpotent operator having Jordan canonical form whose block sizes form a weakly decreasing sequence lambda = (lambda 1, .. ., lambda l). This parallels the description of the equivariant cohomology ring of F lambda due to Abe and Horiguchi and generalizes the description of ordinary topological K-ring of F lambda due to Sankaran and Uma [13]. (c) 2023 Elsevier B.V. All rights reserved.
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页数:21
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