Higher-order regularity for a structurally damped plate equation on rough domains

Fuente: arXiv
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Main Authors: Denk, Robert, Roodenburg, Floris
Format: Preprint
Published: 2026
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author Denk, Robert
Roodenburg, Floris
author_facet Denk, Robert
Roodenburg, Floris
contents We prove well-posedness and higher-order regularity for a linear structurally damped plate equation with inhomogeneous Dirichlet--Neumann boundary conditions on the half-space and on bounded domains. To this end, we study maximal regularity properties of the related first-order system on weighted Sobolev spaces of arbitrarily high smoothness. In particular, we consider Sobolev spaces with power weights that measure the distance to the boundary. This allows us to avoid unnatural compatibility conditions for the data and treat the plate equation with rough inhomogeneous boundary conditions on bounded $C^{1,κ}$-domains, where $κ\in (0,1)$ depends on the exponent of the spatial power weight, but is independent of the smoothness of the data. Our methods can serve as an example to treat more complicated mixed-order systems as well.
format Preprint
id arxiv_https___arxiv_org_abs_2602_24103
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Higher-order regularity for a structurally damped plate equation on rough domains
Denk, Robert
Roodenburg, Floris
Analysis of PDEs
Primary: 35K35, Secondary: 35J40, 35Q74, 46E35
We prove well-posedness and higher-order regularity for a linear structurally damped plate equation with inhomogeneous Dirichlet--Neumann boundary conditions on the half-space and on bounded domains. To this end, we study maximal regularity properties of the related first-order system on weighted Sobolev spaces of arbitrarily high smoothness. In particular, we consider Sobolev spaces with power weights that measure the distance to the boundary. This allows us to avoid unnatural compatibility conditions for the data and treat the plate equation with rough inhomogeneous boundary conditions on bounded $C^{1,κ}$-domains, where $κ\in (0,1)$ depends on the exponent of the spatial power weight, but is independent of the smoothness of the data. Our methods can serve as an example to treat more complicated mixed-order systems as well.
title Higher-order regularity for a structurally damped plate equation on rough domains
topic Analysis of PDEs
Primary: 35K35, Secondary: 35J40, 35Q74, 46E35
url https://arxiv.org/abs/2602.24103