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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.12941 |
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| _version_ | 1866908551550599168 |
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| author | Marín, David |
| author_facet | Marín, David |
| contents | We study degenerate singular points of planar vector fields inside a (degenerated) flow-box. These kind of singularities are called fake saddles and their linear parts are always zero. We characterize fake saddles with non-zero second order jet and we give the first term of an uniform asymptotic expansion of the Poincaré map between two transverse sections to their corresponding singular fiber, determining its stability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_12941 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Fake saddles and their transition maps Marín, David Dynamical Systems 34D10, 34D20, 34C05 We study degenerate singular points of planar vector fields inside a (degenerated) flow-box. These kind of singularities are called fake saddles and their linear parts are always zero. We characterize fake saddles with non-zero second order jet and we give the first term of an uniform asymptotic expansion of the Poincaré map between two transverse sections to their corresponding singular fiber, determining its stability. |
| title | Fake saddles and their transition maps |
| topic | Dynamical Systems 34D10, 34D20, 34C05 |
| url | https://arxiv.org/abs/2509.12941 |