A property of the interleaving distance for sheaves: research article
Let \X\ be a real analytic manifold endowed with a distance satisfying suitable properties and let {\bf k\ be a field. In [Petit and Schapira, Selecta Math. 29 (2023), no. 70, DOI 10.1007/s00029-023-00875-6], the authors construct a pseudo-distance on the derived category of sheaves of {\bf k\-modul...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
January 2025
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| In: |
Bulletin of the London Mathematical Society
Year: 2025, Volume: 57, Issue: 1, Pages: 137-149 |
| ISSN: | 1469-2120 |
| DOI: | 10.1112/blms.13187 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1112/blms.13187 Verlag, kostenfrei, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1112/blms.13187 |
| Author Notes: | François Petit, Pierre Schapira, Lukas Waas |
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| 520 | |a Let \X\ be a real analytic manifold endowed with a distance satisfying suitable properties and let {\bf k\ be a field. In [Petit and Schapira, Selecta Math. 29 (2023), no. 70, DOI 10.1007/s00029-023-00875-6], the authors construct a pseudo-distance on the derived category of sheaves of {\bf k\-modules on \X\, generalizing a previous construction of [Kashiwara and Schapira, J. Appl. Comput. Math. Topol. 2 (2018), 83-113]. We prove here that if the distance between two constructible sheaves with compact support (or more generally, constructible sheaves up to infinity) on \X\ is zero, then these two sheaves are isomorphic, answering a question of [Kashiwara and Schapira, J. Appl. Comput. Math. Topol. 2 (2018), 83-113]. We also prove that our results imply a similar statement for finitely presentable persistence modules due to Lesnick. | ||
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