Abstract:
We present conditions for weighted integrability of the Fourier transforms of convolutions of functions in Lorentz and Lebesgue spaces. We also obtain quantitative estimates related to this integrability. The results are shown to be sharp.
The work of the second author was supported by the Ministry of Science and Higher Education of the Russian Federation within the state assignment, project no. FSRR-2020-0006.
Citation:
B. I. Golubov, S. S. Volosivets, “Fourier Transforms of Convolutions of Functions in Lebesgue and Lorentz Spaces”, Approximation Theory, Functional Analysis, and Applications, Collected papers. On the occasion of the 70th birthday of Academician Boris Sergeevich Kashin, Trudy Mat. Inst. Steklova, 319, Steklov Math. Inst., Moscow, 2022, 94–105; Proc. Steklov Inst. Math., 319 (2022), 85–96