Approximation of starshaped sets using polynomials
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866908385297825792 |
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| author | Meroni, Chiara Miller, Jared Velasco, Mauricio |
| author_facet | Meroni, Chiara Miller, Jared Velasco, Mauricio |
| contents | We introduce polystar bodies: compact starshaped sets whose gauge or radial functions are expressible by polynomials, enabling tractable computations, such as that of intersection bodies. We prove that polystar bodies are uniformly dense in starshaped sets and obtain asymptotically optimal approximation guarantees. We develop tools for the construction of polystar approximations and illustrate them via several computational examples, including numerical estimations of largest volume slices and widths. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_24352 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Approximation of starshaped sets using polynomials Meroni, Chiara Miller, Jared Velasco, Mauricio Optimization and Control Metric Geometry 51M16, 52A40, 52-08 We introduce polystar bodies: compact starshaped sets whose gauge or radial functions are expressible by polynomials, enabling tractable computations, such as that of intersection bodies. We prove that polystar bodies are uniformly dense in starshaped sets and obtain asymptotically optimal approximation guarantees. We develop tools for the construction of polystar approximations and illustrate them via several computational examples, including numerical estimations of largest volume slices and widths. |
| title | Approximation of starshaped sets using polynomials |
| topic | Optimization and Control Metric Geometry 51M16, 52A40, 52-08 |
| url | https://arxiv.org/abs/2505.24352 |