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A characterization of weighted Sobolev spaces via weighted Riesz bounded variation spaces

Volume 274 / 2024

David Cruz-Uribe, OFS, Oscar Guzmán, Humberto Rafeiro Studia Mathematica 274 (2024), 287-304 MSC: Primary 26B05; Secondary 26B30, 42B35 DOI: 10.4064/sm230729-14-12 Published online: 23 February 2024

Abstract

We introduce weighted Riesz bounded variation spaces defined on an open subset of $n$-dimensional Euclidean space and use them to characterize weighted Sobolev spaces when the weight belongs to the Muckenhoupt class. As an application, using Rubio de Francia’s extrapolation theory, we obtain a similar characterization of variable exponent Sobolev spaces via variable exponent Riesz bounded variation spaces.

Authors

  • David Cruz-Uribe, OFSDepartment of Mathematics
    University of Alabama
    Tuscaloosa, AL 35401, USA
    e-mail
  • Oscar GuzmánFacultad de Ciencias y Humanidades
    Universidad de America
    Bogotá, Colombia
    e-mail
  • Humberto RafeiroDepartment of Mathematical Sciences
    United Arab Emirates University
    Al Ain, United Arab Emirates
    e-mail

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