EIGENVALUE RESOLUTION OF SELF-ADJOINT MATRICES

被引:0
|
作者
Zhu, Xuwen [1 ]
机构
[1] Stanford Univ, Dept Math, 380 Serra Mall, Stanford, CA 94305 USA
关键词
eigenvalue; resolution; self-adjoint matrices; unitary group action; PERTURBATION-THEORY;
D O I
10.2140/pjm.2017.288.241
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Resolution of a compact group action in the sense described by Albin and Melrose is applied to the conjugation action by the unitary group on self-adjoint matrices. It is shown that the eigenvalues are smooth on the resolved space and that the trivial bundle smoothly decomposes into the direct sum of global one-dimensional eigenspaces.
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页码:241 / 255
页数:15
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