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On the index of a vector field at an isolated singularity

Wolfgang Ebeling·Sabir M. Gusein-Zade
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Abstract

We consider manifolds with isolated singularities, i.e., topological spaces which are manifolds (say, $C^\infty$--) outside discrete subsets (sets of singular points). For (germs of) manifolds with, so called, cone--like singularities, a notion of the index of an isolated singular point of a vector field is introduced. There is given a formula for the index of a gradient vector field on a (real) isolated complete intersection singularity. The formula is in terms of signatures of certain quadratic forms on the corresponding spaces of thimbles.

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BibTeXRIS

Wolfgang Ebeling, Sabir M. Gusein-Zade. 1998-03-12. On the index of a vector field at an isolated singularity. https://arxiv.org/abs/alg-geom/9710008

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