Morse-Bott cohomology from homological perturbation theory

Fuente: arXiv
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Autore principale: Zhou, Zhengyi
Natura: Preprint
Pubblicazione: 2019
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author Zhou, Zhengyi
author_facet Zhou, Zhengyi
contents In this paper, we construct cochain complexes generated by the cohomology of critical manifolds in the abstract setup of flow categories for Morse-Bott theories under minimum transversality assumptions. We discuss the relations between different constructions of Morse-Bott theories. In particular, we explain how homological perturbation theory is used in Morse-Bott theories, and both our construction and the cascades construction can be interpreted as applications of homological perturbations. In the presence of group actions, we construct cochain complexes for the equivariant theory. Expected properties like the independence of approximations of classifying spaces and the existence of the action spectral sequence are proven. We carry out our construction for Morse-Bott functions on closed manifolds and prove it recovers the regular cohomology. We outline the project of combining our construction with the polyfold theory.
format Preprint
id arxiv_https___arxiv_org_abs_1902_06587
institution arXiv
publishDate 2019
record_format arxiv
spellingShingle Morse-Bott cohomology from homological perturbation theory
Zhou, Zhengyi
Symplectic Geometry
Algebraic Topology
In this paper, we construct cochain complexes generated by the cohomology of critical manifolds in the abstract setup of flow categories for Morse-Bott theories under minimum transversality assumptions. We discuss the relations between different constructions of Morse-Bott theories. In particular, we explain how homological perturbation theory is used in Morse-Bott theories, and both our construction and the cascades construction can be interpreted as applications of homological perturbations. In the presence of group actions, we construct cochain complexes for the equivariant theory. Expected properties like the independence of approximations of classifying spaces and the existence of the action spectral sequence are proven. We carry out our construction for Morse-Bott functions on closed manifolds and prove it recovers the regular cohomology. We outline the project of combining our construction with the polyfold theory.
title Morse-Bott cohomology from homological perturbation theory
topic Symplectic Geometry
Algebraic Topology
url https://arxiv.org/abs/1902.06587