On the Fredholm index of matrix Wiener-Hopf plus/minus Hankel operators with semi-almost periodic symbols

被引:8
作者
Bogveradze, Giorgi [1 ]
Castro, Luis P. [1 ]
机构
[1] Univ Aveiro, Dept Math, Res Unit Math & Aplicacoes, P-3810193 Aveiro, Portugal
来源
OPERATOR ALGEBRAS, OPERATOR THEORY AND APPLICATIONS | 2008年 / 181卷
关键词
Fredholm index formula; Wiener-Hopf plus/minus Hankel operator; semi-almost periodic function; Fredholm property;
D O I
10.1007/978-3-7643-8684-9_5
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Conditions for the Fredholm property of Wiener-Hopf plus/minus Hankel operators with semi-almost periodic Fourier matrix symbols are exhibited. Under such conditions, a formula for the sum of the Fredholm indices of these Wiener-Hopf plus Hankel and Wiener-Hopf minus Hankel operators is derived. Concrete examples are worked out in view of the computation of the Fredholm indices.
引用
收藏
页码:143 / 158
页数:16
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