Isoperimetric inequalities in Hadamard spaces of asymptotic rank two
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866911037863755776 |
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| author | Lang, Urs Stadler, Stephan Urech, David |
| author_facet | Lang, Urs Stadler, Stephan Urech, David |
| contents | Gromov's isoperimetric gap conjecture for Hadamard spaces states that cycles in dimensions greater than or equal to the asymptotic rank admit linear isoperimetric filling inequalities, as opposed to the inequalities of Euclidean type in lower dimensions. In the case of asymptotic rank 2, recent progress was made by Druţu-Lang-Papasoglu-Stadler who established a homotopical inequality for Lipschitz 2-spheres with exponents arbitrarily close to 1. We prove a homological inequality of the same type for general cycles in dimensions at least 2, assuming that the ambient space has finite linearly controlled asymptotic dimension. This holds in particular for all Hadamard 3-manifolds and finite-dimensional CAT(0) cube complexes. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2506_04882 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Isoperimetric inequalities in Hadamard spaces of asymptotic rank two Lang, Urs Stadler, Stephan Urech, David Metric Geometry Differential Geometry Group Theory Gromov's isoperimetric gap conjecture for Hadamard spaces states that cycles in dimensions greater than or equal to the asymptotic rank admit linear isoperimetric filling inequalities, as opposed to the inequalities of Euclidean type in lower dimensions. In the case of asymptotic rank 2, recent progress was made by Druţu-Lang-Papasoglu-Stadler who established a homotopical inequality for Lipschitz 2-spheres with exponents arbitrarily close to 1. We prove a homological inequality of the same type for general cycles in dimensions at least 2, assuming that the ambient space has finite linearly controlled asymptotic dimension. This holds in particular for all Hadamard 3-manifolds and finite-dimensional CAT(0) cube complexes. |
| title | Isoperimetric inequalities in Hadamard spaces of asymptotic rank two |
| topic | Metric Geometry Differential Geometry Group Theory |
| url | https://arxiv.org/abs/2506.04882 |