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| Format: | Preprint |
| Veröffentlicht: |
2026
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| Schlagworte: | |
| Online-Zugang: | https://arxiv.org/abs/2606.00707 |
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| _version_ | 1866914620477800448 |
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| author | Kamiyama, Tsubasa |
| author_facet | Kamiyama, Tsubasa |
| contents | Motivated by the small-scale viewpoint of Roff and Yoshinaga, we study finite metric spaces whose scaled copies collapse to a single point while their magnitude remembers how the collapse takes place. The limit metric space is geometrically indistinguishable from a point, but the magnitude function can detect differences in the path of collapse. We introduce a four-parameter family of cyclic two-chunk finite metric spaces, compute their magnitude explicitly, and use the formula to construct balanced examples whose small-scale magnitude is less than one. In particular, we exhibit a twelve-point finite metric space satisfying lim_{t -> 0+} Mag(tX) = 44/59 < 1. The guiding question and the terminology around the one-point property come from Leinster's magnitude of finite metric spaces and from Roff--Yoshinaga's work on |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_00707 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Small-Scale Magnitude Below One for Cyclic Two-Chunk Finite Metric Spaces Kamiyama, Tsubasa Metric Geometry Motivated by the small-scale viewpoint of Roff and Yoshinaga, we study finite metric spaces whose scaled copies collapse to a single point while their magnitude remembers how the collapse takes place. The limit metric space is geometrically indistinguishable from a point, but the magnitude function can detect differences in the path of collapse. We introduce a four-parameter family of cyclic two-chunk finite metric spaces, compute their magnitude explicitly, and use the formula to construct balanced examples whose small-scale magnitude is less than one. In particular, we exhibit a twelve-point finite metric space satisfying lim_{t -> 0+} Mag(tX) = 44/59 < 1. The guiding question and the terminology around the one-point property come from Leinster's magnitude of finite metric spaces and from Roff--Yoshinaga's work on |
| title | Small-Scale Magnitude Below One for Cyclic Two-Chunk Finite Metric Spaces |
| topic | Metric Geometry |
| url | https://arxiv.org/abs/2606.00707 |