On a homotopy $4$-sphere
Geometric Topology
2020-08-21 v2 Symplectic Geometry
Abstract
We give a brief survey of some facts about homotopy -spheres \cite{a1}, then give a proof that the curious homotopy sphere constructed in \cite{a2} is in fact diffeomorphic to the standard , and discuss its relation to infinite order loose corks and anti-corks.
Keywords
Cite
@article{arxiv.2006.05835,
title = {On a homotopy $4$-sphere},
author = {Selman Akbulut},
journal= {arXiv preprint arXiv:2006.05835},
year = {2020}
}
Comments
The contents of this paper is transferred to the replacement submission of arXiv:1912.11804