Exotic diffeomorphisms on a contractible 4-manifold surviving two stabilizations
Geometric Topology
2025-10-21 v2
Abstract
We develop a -equivariant refinement of the lattice homotopy type for computing equivariant Seiberg--Witten Floer homotopy types. As an application, we construct a relatively exotic diffeomorphism on a compact contractible 4-manifold that survives two stabilizations.
Keywords
Cite
@article{arxiv.2510.12394,
title = {Exotic diffeomorphisms on a contractible 4-manifold surviving two stabilizations},
author = {Sungkyung Kang and JungHwan Park and Masaki Taniguchi},
journal= {arXiv preprint arXiv:2510.12394},
year = {2025}
}
Comments
131 pages, 1 figures; comments welcome!; minor typos corrected, cleveref problem fixed