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math.FA2026
New results on Fourier multipliers on : a perspective through unimodular symbols
María Jesús Carro, Alberto Salguero-Alarcón
The paper focuses on the behaviour of unimodular Fourier multipliers with exponential growth in the context of weighted -spaces. Our main result shows that much of the general…
math.FA2025
Extrapolation of compactness on weighted mixed Lebesgue spaces
María J. Carro, Carlos Pérez, Rodolfo H. Torres
A version of the Fréchet-Kolmogorov theorem for the compactness of operators in weighted mixed Lebesgue spaces is proved and a corresponding compact extrapolation theory a la Rubio…