Combinatorics of linear stability for Hamiltonian systems in arbitrary dimension: on GIT quotients of the symplectic group, and the associahedron
We address the general problem of studying linear stability and bifurcations of periodic orbits for Hamiltonian systems of arbitrary degrees of freedom. We study the topology of the GIT sequence introduced by the first author and Urs Frauenfelder in [7], in arbitrary dimension. In particular, we not...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
20 September 2024
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| In: |
Mathematische Zeitschrift
Year: 2024, Volume: 308, Issue: 2, Pages: 34-1-34-27 |
| ISSN: | 1432-1823 |
| DOI: | 10.1007/s00209-024-03585-7 |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/s00209-024-03585-7
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| Author Notes: | Agustin Moreno, Francesco Ruscelli |
| Summary: | We address the general problem of studying linear stability and bifurcations of periodic orbits for Hamiltonian systems of arbitrary degrees of freedom. We study the topology of the GIT sequence introduced by the first author and Urs Frauenfelder in [7], in arbitrary dimension. In particular, we note that the combinatorics encoding the linear stability of periodic orbits is governed by a quotient of the associahedron. Our approach gives a topological/combinatorial proof of the classical Krein-Moser theorem, and refines it for the case of symmetric orbits. |
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| Item Description: | Gesehen am 20.02.2025 |
| Physical Description: | Online Resource |
| ISSN: | 1432-1823 |
| DOI: | 10.1007/s00209-024-03585-7 |