English

A G-version of Smale's theorem

Differential Geometry 2007-05-23 v1 Group Theory

Abstract

We will prove the equivariant version of Smale's transversality theorem: suppose that the compact Lie-group G acts on the compact differentiable manifold M on which an invariant Morse-function f and an invariant vector field X are given so that X is gradient-like with respect to f (i.e. X(f)<0 away from critical orbits and X is the gradient of f (w.r.t. a fixed invariant Riemannian metric) on some invariant open subsets about critical orbits of f.) Given a bound ϵ>0\epsilon>0 we will prove the existence of an invariant vector field Y of class C^1 for which vector field X+Y is also gradient-like such that: (a) |Y|_1<\epsilon (here |.|_1 is the C^1 norm). (b)The intersection of the stable and unstable sets of vector field X+Y taken at a pair of critical orbits of f is transverse when restricted to an orbit type of the action.

Keywords

Cite

@article{arxiv.math/0201133,
  title  = {A G-version of Smale's theorem},
  author = {Imre Major},
  journal= {arXiv preprint arXiv:math/0201133},
  year   = {2007}
}

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11 pages