A zero-orbit index formula of 1-set-contractive equivariant fields

zbMATH Open0986.47048MaRDI QIDQ2713067

Zhiqiang Zhang

Publication date: 6 May 2001

Published in: Journal of Lanzhou University. Natural Sciences (Search for Journal in Brave)

zbMATH Keywords

Euler characteristiccompact Lie groupequivariant homotopyalgebraic multiplicityindex of the regular zero-orbitlinear 1-set-contractive fieldnonpositive eigenvalueszero-index Fredholm operator

Mathematics Subject Classification ID

Contraction-type mappings, nonexpansive mappings, (A)-proper mappings, etc. (47H09) Degree theory for nonlinear operators (47H11)

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