A characterization of relatively compact sets in $L^p(\Omega,B)$

Authors

  • Markus Gahn Friedrich-Alexander University Erlangen-Nürnberg
  • Maria Neuss-Radu Friedrich-Alexander University Erlangen-Nürnberg

Keywords:

Kolmogorov-Riesz-type compactness result, Banach-space valued functions, homogenization of processes on periodic surfaces

Abstract

We give a characterization of relatively compact sets $F$ in $L^p(\Omega,B)$ for $p\in [1,\infty)$, $B$ a Banach-space, and $\Omega \subset \R^n$. This is a generalization of the results obtained in \cite{Simon} for the space $L^p((0,T),B)$ with $T>0$, first to rectangles $\Omega =(a,b) \subset \R^n$ and, under additional conditions, to arbitrary open and bounded subsets of $\R^n$. An application of the main compactness result to a problem arising in homogenization of processes on periodic surfaces is given.

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Published

2016-09-21

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Section

Articles