A note on homotopy and pseudoisotopy of diffeomorphisms of $4$-manifolds
This note serves to record examples of diffeomorphisms of closed smooth $4$-manifolds $X$ that are homotopic but not pseudoisotopic to the identity, and to explain why there are no such examples when $X$ is orientable and its fundamental group is a free group.
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| Principais autores: | , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
Académie des sciences
2024-11-01
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| Colecção: | Comptes Rendus. Mathématique |
| Assuntos: | |
| Acesso em linha: | https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.663/ |
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