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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)

On the Hopf index and the Conley index


Author: Christopher K. McCord
Journal: Trans. Amer. Math. Soc. 313 (1989), 853-860
MSC: Primary 58F25; Secondary 55M20
MathSciNet review: 961594
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Abstract: The following generalization of the Poincaré-Hopf index theorem is proved: If $ S$ is an isolated invariant set of a flow on a manifold $ M$, then the sum of the Hopf indices on $ S$ is equal (up to a sign) to the Euler characteristic of the homology Conley index of $ S$.


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DOI: http://dx.doi.org/10.1090/S0002-9947-1989-0961594-0
PII: S 0002-9947(1989)0961594-0
Article copyright: © Copyright 1989 American Mathematical Society