Periodic solutions for weakly damped systems

Fuente: arXiv
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Autori principali: Laurent, Camille, Rivas, Ivonne
Natura: Preprint
Pubblicazione: 2026
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author Laurent, Camille
Rivas, Ivonne
author_facet Laurent, Camille
Rivas, Ivonne
contents In this article, we investigate the existence and properties of time-periodic solutions for damped evolutionary partial differential equations subject to periodic forcing. Particular emphasis is placed on configurations where the energy decay of the corresponding free equation is non-uniform. We link the speed of decay and the existence of periodic solutions for the forced equation. Furthermore, we characterize the relationship between the resolvent growth and the associated loss of regularity. The theoretical framework is illustrated through several examples, including linear and nonlinear damped wave equations and coupled hyperbolic-parabolic systems. Finally, we provide a counterexample demonstrating the occurrence of resonance, in which regular but unbounded solutions emerge despite damping.
format Preprint
id arxiv_https___arxiv_org_abs_2605_18321
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Periodic solutions for weakly damped systems
Laurent, Camille
Rivas, Ivonne
Analysis of PDEs
In this article, we investigate the existence and properties of time-periodic solutions for damped evolutionary partial differential equations subject to periodic forcing. Particular emphasis is placed on configurations where the energy decay of the corresponding free equation is non-uniform. We link the speed of decay and the existence of periodic solutions for the forced equation. Furthermore, we characterize the relationship between the resolvent growth and the associated loss of regularity. The theoretical framework is illustrated through several examples, including linear and nonlinear damped wave equations and coupled hyperbolic-parabolic systems. Finally, we provide a counterexample demonstrating the occurrence of resonance, in which regular but unbounded solutions emerge despite damping.
title Periodic solutions for weakly damped systems
topic Analysis of PDEs
url https://arxiv.org/abs/2605.18321