Surfaces with central configuration and Dulac's problem for a three dimensional isolated Hopf singularity

Fuente: arXiv
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Autori principali: Corral, Nuria, Vega, María Martín, Sánchez, Fernando Sanz
Natura: Preprint
Pubblicazione: 2024
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author Corral, Nuria
Vega, María Martín
Sánchez, Fernando Sanz
author_facet Corral, Nuria
Vega, María Martín
Sánchez, Fernando Sanz
contents Let $ξ$ be a real analytic vector field with an elementary isolated singularity at $0\in \mathbb{R}^3$ and eigenvalues $\pm bi,c$ with $b,c\in \mathbb{R}$ and $b\neq 0$. We prove that all cycles of $ξ$ in a sufficiently small neighborhood of $0$, if they exist, are contained in a finite number of subanalytic invariant surfaces entirely composed by a continuum of cycles. In particular, we solve Dulac's problem, i.e. finiteness of limit cycles, for such vector fields.
format Preprint
id arxiv_https___arxiv_org_abs_2401_16484
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Surfaces with central configuration and Dulac's problem for a three dimensional isolated Hopf singularity
Corral, Nuria
Vega, María Martín
Sánchez, Fernando Sanz
Dynamical Systems
34C05 (Primary) 34C08, 34C07, 34C20, 37C10, 37C25 (Secondary)
Let $ξ$ be a real analytic vector field with an elementary isolated singularity at $0\in \mathbb{R}^3$ and eigenvalues $\pm bi,c$ with $b,c\in \mathbb{R}$ and $b\neq 0$. We prove that all cycles of $ξ$ in a sufficiently small neighborhood of $0$, if they exist, are contained in a finite number of subanalytic invariant surfaces entirely composed by a continuum of cycles. In particular, we solve Dulac's problem, i.e. finiteness of limit cycles, for such vector fields.
title Surfaces with central configuration and Dulac's problem for a three dimensional isolated Hopf singularity
topic Dynamical Systems
34C05 (Primary) 34C08, 34C07, 34C20, 37C10, 37C25 (Secondary)
url https://arxiv.org/abs/2401.16484