We show that certain extension results obtained by Maz’ya and Poborchi for domains with an outward peak can be realized via composition operators generated by reflections. We also study the case of the complementary domains.
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Translated from Problemy Matematicheskogo Analiza 118, 2022, pp. 117-137.
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Koskela, P., Zhu, Z. Sobolev Extensions Via Reflections. J Math Sci 268, 376–401 (2022). https://doi.org/10.1007/s10958-022-06204-0
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DOI: https://doi.org/10.1007/s10958-022-06204-0