Extremal Area of Polygons, sliding along a Circle
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arXiv
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| Format: | Preprint |
| Published: |
2020
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| _version_ | 1866917727136907264 |
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| author | Siersma, Dirk |
| author_facet | Siersma, Dirk |
| contents | We determine all critical configurations for the Area function on polygons with vertices on a circle or an ellipse. For isolated critical points we compute their Morse index, resp index of the gradient vector field. We relate the computation at an isolated degenerate point to an eigenvalue question about combinations. In the even dimensional case non-isolated singularities occur as `zigzag trains'. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2001_10882 |
| institution | arXiv |
| publishDate | 2020 |
| record_format | arxiv |
| spellingShingle | Extremal Area of Polygons, sliding along a Circle Siersma, Dirk Metric Geometry Geometric Topology 58K05, 52B99 We determine all critical configurations for the Area function on polygons with vertices on a circle or an ellipse. For isolated critical points we compute their Morse index, resp index of the gradient vector field. We relate the computation at an isolated degenerate point to an eigenvalue question about combinations. In the even dimensional case non-isolated singularities occur as `zigzag trains'. |
| title | Extremal Area of Polygons, sliding along a Circle |
| topic | Metric Geometry Geometric Topology 58K05, 52B99 |
| url | https://arxiv.org/abs/2001.10882 |