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arXiv · 2002.10721

Generalization of Rellich-Kondrachov theorem and trace compacteness in the framework of irregular and fractal boundaries

Anna Rozanova-Pierrat
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Abstract

We present a survey of recent results of the functional analysis allowing to solve PDEs in a large class of domains with irregular boundaries. We extend the previously introduced concept of admissible domains with a d-set boundary on the domains with the boundaries on which the measure is not necessarily Ahlfors regular d-measure. This gives a generalization of Rellich-Kondrachov theorem and the compactness of the trace operator, allowing to obtain, as for a regular classical case the unicity/existence of weak solutions of Poisson boundary valued problem with the Robin boundary condition and to obtain the usual properties of the associated spectral problem.

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Anna Rozanova-Pierrat. 2020-02-25. Generalization of Rellich-Kondrachov theorem and trace compacteness in the framework of irregular and fractal boundaries. https://arxiv.org/abs/2002.10721

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