Abstract

Our aim in this paper is to give Sobolev's inequality for Riesz potentials of functions in generalized Morrey spaces with variable exponent attaining the value 1 over non-doubling measure spaces. The main result is oriented to the outrange of the well-known Adams theorem. MSC: Primary 31B15; secondary 46E35; 26A33

Highlights

  • The boundedness of fractional integral operators on Morrey spaces is known as the Adams theorem

  • Many endpoint results have been obtained for this theorem, and in this paper we extend them to generalized Morrey spaces with variable exponent attaining the value over non-doubling measure spaces

  • We aim to understand how the fractional integral operators behave in generalized Morrey spaces with variable exponent attaining the value over non-doubling measure spaces

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Summary

Introduction

The boundedness of fractional integral operators on Morrey spaces is known as the Adams theorem. In Morrey observed that a weaker regularity sufficed in order that the solutions in elliptic differential equations were smooth [ ]. This observation grew up to be a useful tool for partial differential equations in general. Nowadays, his technique turned out to be a wide theory of function spaces called Morrey spaces; see [ ]. We are oriented to building up a theory of a metric measure space (X, d, μ) for which the notion of dimension is not equipped with μ, where d is a distance function and μ is a.

Ej is given recursively by
We consider the Sobolev exponent
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