English

Special framed Morse functions on surfaces

Geometric Topology 2016-01-12 v1 Algebraic Topology

Abstract

Let MM be a smooth closed orientable surface. Let FF be the space of Morse functions on MM, and F1\mathbb{F}^1 the space of framed Morse functions, both endowed with CC^\infty-topology. The space F0\mathbb{F}^0 of special framed Morse functions is defined. We prove that the inclusion mapping F0F1\mathbb{F}^0\hookrightarrow\mathbb{F}^1 is a homotopy equivalence. In the case when at least χ(M)+1\chi(M)+1 critical points of each function of FF are labeled, homotopy equivalences K~M~\mathbb{\widetilde K}\sim\widetilde{\cal M} and FF0D0×K~F\sim\mathbb{F}^0\sim{\mathscr D}^0\times\mathbb{\widetilde K} are proved, where K~\mathbb{\widetilde K} is the complex of framed Morse functions, M~F1/D0\widetilde{\cal M}\approx\mathbb{F}^1/{\mathscr D}^0 is the universal moduli space of framed Morse functions, D0{\mathscr D}^0 is the group of self-diffeomorphisms of MM homotopic to the identity.

Keywords

Cite

@article{arxiv.1106.3116,
  title  = {Special framed Morse functions on surfaces},
  author = {Elena A. Kudryavtseva},
  journal= {arXiv preprint arXiv:1106.3116},
  year   = {2016}
}

Comments

8 pages, in Russian

R2 v1 2026-06-21T18:23:07.940Z