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arXiv · 2506.22585

Pullback dynamics for a semilinear heat equation with homogeneous Neumann boundary conditions on time-varying domains

Gleiciane S. Aragão·Flank D. M. Bezerra·Lucas G. Mendonça
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Abstract

We are interested in studying a non-autonomous semilinear heat equation with homogeneous Neumann boundary conditions on time-varying domains. Using a differential geometry approach with coordinate transformations technique, we will show that the non-autonomous problem on a time-varying domain is equivalent, in some sense, to a non-autonomous problem on a fixed domain. Furthermore, we intend to show the local existence and uniqueness of solutions to this problem, as well as, to extend these solutions globally. Finally, we will show the existence of pullback attractors. To the best of our knowledge, results on attractors are new even for non-autonomous semilinear heat equations with homogeneous Neumann boundary conditions on time-varying domains subject to conditions with more restrictive assumptions

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Gleiciane S. Aragão, Flank D. M. Bezerra, Lucas G. Mendonça. 2025-06-27. Pullback dynamics for a semilinear heat equation with homogeneous Neumann boundary conditions on time-varying domains. https://arxiv.org/abs/2506.22585

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