English

Topology of the spaces of Morse functions on surfaces

Geometric Topology 2016-01-12 v2 Algebraic Topology

Abstract

Let MM be a smooth closed orientable surface, and let FF be the space of Morse functions on MM such that at least χ(M)+1\chi(M)+1 critical points of each function of FF are labeled by different labels (enumerated). Endow the space FF with CC^\infty-topology. We prove the homotopy equivalence FR×M~F\sim R\times{\widetilde{\cal M}} where RR is one of the manifolds RP3{\mathbb R}P^3, S1×S1S^1\times S^1 and the point in dependence on the sign of χ(M)\chi(M), and M~{\widetilde{\cal M}} is the universal moduli space of framed Morse functions, which is a smooth stratified manifold. Morse inequalities for the Betti numbers of the space FF are obtained.

Keywords

Cite

@article{arxiv.1104.4792,
  title  = {Topology of the spaces of Morse functions on surfaces},
  author = {Elena Kudryavtseva},
  journal= {arXiv preprint arXiv:1104.4792},
  year   = {2016}
}

Comments

15 pages, in Russian