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Real, complex and functional analysis
A version of Schwarz's lemma for mappings with weighted bounded distortion
M. V. Tryamkin Sobolev Institute of Mathematics, 4, Koptyuga ave., Novosibirsk, 630090, Russia
Abstract:
We consider the class of mappings generalizing qusiregular mappings. Every mapping from this class is defined in a domain of Euclidean $n$-space and possesses the following properties: it is open, continuous, and discrete, it belongs locally to the Sobolev class $W^{1}_{q}$, it has finite distortion and nonnegative Jacobian, and its function of weighted $(p,q)$-distortion is integrable to a certian power depending on $p$ and $q$, where $n-1<q\leqslant p<\infty$. We obtain an analog of Schwarz's lemma for such mappings provided that $p\geqslant n$. The technique used is based on the spherical symmetrization procedure and the notion of Grötzsch condenser.
Keywords:
capacitary estimates, Grötzsch condenser, mappings with weighted bounded distortion, Schwarz's lemma, spherical symmetrization.
Received March 2, 2021, published April 18, 2021
Citation:
M. V. Tryamkin, “A version of Schwarz's lemma for mappings with weighted bounded distortion”, Sib. Èlektron. Mat. Izv., 18:1 (2021), 423–432
Linking options:
https://www.mathnet.ru/eng/semr1370 https://www.mathnet.ru/eng/semr/v18/i1/p423
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