Spectral symmetry of solutions of boundary value problems in Banach algebras

被引:0
|
作者
Herzog, Gerd [1 ]
Kunstmann, Peer Ch [1 ]
机构
[1] Karlsruhe Inst Technol KIT, Inst Anal, D-76128 Karlsruhe, Germany
关键词
boundary value problems; Banach algebras; symmetry;
D O I
10.4064/ap210520-4-10
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
For Banach algebras A and solutions u : [0, 1] -> A of u ''(t) + f(u(t)) + lambda u'(t)(2) = 0, u(0) = 0, u(1) = 0, we prove symmetry of the spectrum sigma(u(t)), that is, sigma(u(t)) = sigma(u(1 - t)) for all t is an element of [0, 1], whenever sigma(u([0, 1])) lies in a cone of the complex plane.
引用
收藏
页码:39 / 48
页数:10
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