The Dehn twist on a sum of two K3 surfaces
Ruberman gave the first examples of self-diffeomorphisms of fourmanifolds that are isotopic to the identity in the topological category but not smoothly so. We give another example of this phenomenon, using the Dehn twist along a 3-sphere in the connected sum of two K3 surfaces.
Main Authors: | , |
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Format: | Article |
Language: | English |
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International Press of Boston
2021
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Online Access: | https://hdl.handle.net/1721.1/133377 |
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author | Kronheimer, PB Mrowka, TS |
author2 | Massachusetts Institute of Technology. Department of Mathematics |
author_facet | Massachusetts Institute of Technology. Department of Mathematics Kronheimer, PB Mrowka, TS |
author_sort | Kronheimer, PB |
collection | MIT |
description | Ruberman gave the first examples of self-diffeomorphisms of fourmanifolds that are isotopic to the identity in the topological category but not smoothly so. We give another example of this phenomenon, using the Dehn twist along a 3-sphere in the connected sum of two K3 surfaces. |
first_indexed | 2024-09-23T16:39:02Z |
format | Article |
id | mit-1721.1/133377 |
institution | Massachusetts Institute of Technology |
language | English |
last_indexed | 2024-09-23T16:39:02Z |
publishDate | 2021 |
publisher | International Press of Boston |
record_format | dspace |
spelling | mit-1721.1/1333772023-01-09T21:29:14Z The Dehn twist on a sum of two K3 surfaces Kronheimer, PB Mrowka, TS Massachusetts Institute of Technology. Department of Mathematics Ruberman gave the first examples of self-diffeomorphisms of fourmanifolds that are isotopic to the identity in the topological category but not smoothly so. We give another example of this phenomenon, using the Dehn twist along a 3-sphere in the connected sum of two K3 surfaces. 2021-10-27T19:52:26Z 2021-10-27T19:52:26Z 2020 2021-05-25T13:46:55Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133377 en 10.4310/MRL.2020.V27.N6.A8 Mathematical Research Letters Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ application/pdf International Press of Boston arXiv |
spellingShingle | Kronheimer, PB Mrowka, TS The Dehn twist on a sum of two K3 surfaces |
title | The Dehn twist on a sum of two K3 surfaces |
title_full | The Dehn twist on a sum of two K3 surfaces |
title_fullStr | The Dehn twist on a sum of two K3 surfaces |
title_full_unstemmed | The Dehn twist on a sum of two K3 surfaces |
title_short | The Dehn twist on a sum of two K3 surfaces |
title_sort | dehn twist on a sum of two k3 surfaces |
url | https://hdl.handle.net/1721.1/133377 |
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