Two-weighted estimates for some sublinear operators on generalized weighted Morrey Spaces and applications

TL;DR

This paper establishes boundedness results for sublinear operators related to fractional integrals and Calderón-Zygmund operators on generalized weighted Morrey spaces, with applications to PDE regularity.

Contribution

It provides new boundedness criteria for these operators and their commutators on generalized weighted Morrey spaces, including strong and weak type estimates.

Findings

Operators are bounded on these spaces under certain conditions.

Results imply boundedness of fractional integrals with Gaussian and rough kernels.

Applications include regularity properties of PDE solutions.

Abstract

In this paper we investigate the boundedness of sublinear operators generated by fractional integrals as well as sublinear operators generated by Calder\`on-Zygmund operators on generalized weighted Morrey spaces and generalized weighted mixed-Morrey spaces. In particular we are interested in the strong-type estimate for $1<p<\infty$ and the weak estimate for $p=1$. Under some assumptions, we prove that the operators and their commutator with a BMO function are bounded on those function spaces with different weights. The results then imply the boundedness of fractional integrals with Gaussian kernel bounds as well as with rough kernels, fractional maximal integrals with rough kernels, and sublinear operators with rough kernels generated by Calder\`on-Zygmund operators. Using the results, we obtain some regularity properties of the solution of some partial differential equations.