The Alexander Trick for Homology Spheres
Year: 2024
Type: article
Abstract: We show that the group of homeomorphisms of a compact contractible $d$-manifold that fix the boundary is contractible, as long as $d \geq 6$. We deduce this from a strong uniqueness statement for one-sided $h$-cobordisms.
Source: Apollo (University of Cambridge)
DOI: 10.17863/cam.124921
Authors: Galatius, Søren, Randal-Williams, Oscar
Language: English
Subfield: Geometry and Topology
Field: Mathematics
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7124937010
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