English

About non-uniqueness when removing closed orbits in Morse-Smale vector fields

Algebraic Topology 2024-10-04 v1

Abstract

Given a Morse-Smale vector field on a smooth manifold, Franks described how one can replace a closed orbit of index kk by two rest points of index k+1k+1 and kk, using a local perturbation. Combined with classical results about gradient-like vector fields, this gives a method of assigning different topological or algebraic structures to Morse-Smale vector fields. We show that there are multiple non-equivalent ways of following this procedure and illustrate this non-uniqueness in various examples. We describe the consequences of this non-uniqueness to the endeavour of assigning CW complexes or chain complexes to Morse-Smale vector fields in a canonical way.

Keywords

Cite

@article{arxiv.2410.02363,
  title  = {About non-uniqueness when removing closed orbits in Morse-Smale vector fields},
  author = {Clemens Bannwart},
  journal= {arXiv preprint arXiv:2410.02363},
  year   = {2024}
}

Comments

8 pages, 6 figures

R2 v1 2026-06-28T19:06:47.915Z