A1 Refereed original research article in a scientific journal
Extrapolation and interpolation in generalized Orlicz spaces
Authors: David Cruz-Uribe, Peter Hästö
Publisher: AMER MATHEMATICAL SOC
Publication year: 2018
Journal: Transactions of the American Mathematical Society
Journal name in source: TRANSACTIONS OF THE AMERICAN MATHEMATICAL SOCIETY
Journal acronym: T AM MATH SOC
Volume: 370
Issue: 6
First page : 4323
Last page: 4349
Number of pages: 27
ISSN: 0002-9947
DOI: https://doi.org/10.1090/tran/7155
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/31020732
We prove versions of the Rubio de Francia extrapolation theorem in generalized Orlicz spaces. As a consequence, we obtain boundedness results for several classical operators as well as a Sobolev inequality in this setting. We also study complex interpolation in the same setting and use it to derive a compact embedding theorem. Our results include as special cases classical Lebesgue and Sobolev space estimates and their variable exponent and double phase growth analogs.
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