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math.FA2026
Weighted Riesz--Kolmogorov criterion and multilinear extrapolation of compactness on variable Lebesgue spaces
Spyridon Kakaroumpas, Stefanos Lappas
This paper addresses a novel weighted Riesz--Kolmogorov theorem and the extrapolation of multilinear compact operators in the context of weighted variable Lebesgue spaces. We estab…
math.FA2025
Factorizations for variable exponent Muckenhoupt weights
Stefanos Lappas, Tuomas Oikari
Given two variable exponent Muckenhoupt weights and , we prove that for all small enough there holds that $w_0…