Higher-order regularity for a structurally damped plate equation on rough domains
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866911473877385216 |
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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 |
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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 |