Traces of weighted Sobolev spaces with Muckenhoupt weight. The case $p=1$

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Abstract

A complete description of traces on $\mathbb{R}^{n}$ of functions from the weighted Sobolev space $W^{l}_{1}(\mathbb{R}^{n+1},\gamma)$, $l \in \mathbb{N}$, with weight $\gamma \in A^{\rm loc}_{1}(\mathbb{R}^{n+1})$ is obtained. In the case $l=1$ the proof of the trace theorems is based on a~special nonlinear algorithm for constructing a~system of tilings of the space~$\mathbb R^n$. As the trace of the space $W^1_1(\mathbb R^{n+1},\gamma)$ we have the new function space $Z(\{\gamma_{k,m}\})$.