On two-dimensional singular integral operators with conformal Carleman shift

Duduchava, R, Saginashvili, A and Shargorodsky, E (1997) On two-dimensional singular integral operators with conformal Carleman shift. Journal of Operator Theory, 37 (2). pp. 263-279. ISSN 1841-7744

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Abstract

For the class of singular integral operators with continuous coefficients and with the conformal shift over a two-dimensional bounded domain $G \subset \mathbb C$ an explicit Fredholm property criterion is obtained. Operators under consideration have kernels $[(\bar \varsigma - \bar z)/(\varsigma - z)]^k \left| {\varsigma - z} \right|^{ - 2}$ either with positive or with negative $k \in \mathbb Z\backslash \{0\}$; the conformal shift $W\varphi (z) = \varphi (\omega (z))$, $\omega : G \to G$ is of Carleman type: $W^k \ne I$ for k = 1, 2, ..., n – 1 and W^n = I. It is proved also that a Fredholm operator A of such type has trivial index Ind A = 0

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Mathematics
Depositing User: EPrints Services
Date Deposited: 06 Feb 2012 19:11
Last Modified: 19 Sep 2012 09:25
URI: http://sro.sussex.ac.uk/id/eprint/19556
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