Fredholm analytic operator families and perturbation of resonances

zbMath1113.47010MaRDI QIDQ855159

S. A. Stepin

Publication date: 3 January 2007

Published in: Journal of Geometry and Symmetry in Physics (Search for Journal in Brave)

zbMATH Keywords

singular pointsPuiseux expansionsanalytic operator-valued functions

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) Functions whose values are linear operators (operator- and matrix-valued functions, etc., including analytic and meromorphic ones) (47A56) (Semi-) Fredholm operators; index theories (47A53) Fredholm structures on infinite-dimensional manifolds (58B15)

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