Extrapolation of compactness on weighted mixed Lebesgue spaces

Published 16 Mar 2025 in math.FA and math.AP | (2503.12486v2)

Abstract: A version of the Fr\'echet-Kolmogorov theorem for the compactness of operators in weighted mixed Lebesgue spaces is proved and a corresponding compact extrapolation theory a la Rubio de Francia is developed. Several applications are presented too.

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