Trace theory for parabolic boundary value problems with rough boundary conditions

Journal Article (2026)
Author(s)

Robert Denk (Universität Konstanz)

Floris B. Roodenburg (TU Delft - Electrical Engineering, Mathematics and Computer Science)

Research Group
Analysis
DOI related publication
https://doi.org/10.1007/s00028-026-01226-6 Final published version
More Info
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Publication Year
2026
Language
English
Research Group
Analysis
Journal title
Journal of evolution equations
Issue number
3
Volume number
26
Article number
80
Downloads counter
10
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Abstract

We characterize the trace spaces arising from intersections of weighted, vector-valued Sobolev spaces, where the weights are powers of the distance to the boundary. These weighted function spaces are particularly suitable for treating boundary value problems where derivatives of the solution blow up at the boundary. As an application of our trace theory, we prove well-posedness for the heat equation with rough inhomogeneous boundary data in Sobolev spaces of higher regularity in domains of fixed regularity C1,κ, with κ∈[0,1).