A method of calculating the characteristic numbers of a meromorphic operator-function

DOI10.1016/0041-5553(85)90183-1zbMath0625.47011OpenAlexW2114921294MaRDI QIDQ3027713

E. V. Chernokozhin, Yu. V. Shestopalov

Publication date: 1986

Published in: USSR Computational Mathematics and Mathematical Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/0041-5553(85)90183-1

zbMATH Keywords

Rouche's theoremcomputation of a simple characteristic valuenormal waves of transmission linestruncated equation

Mathematics Subject Classification ID

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) Equations and inequalities involving linear operators, with vector unknowns (47A50)

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