Compactness criteria for fractional integral operators

Author:

Kokilashvili Vakhtang1,Mastyło Mieczysław2,Meskhi Alexander3

Affiliation:

1. Department of Mathematical Analysis A. Razmadze Mathematical Institute , I. Javakhishvili Tbilisi State University , 6. Tamarashvili St., 0177 , Tbilisi , Georgia

2. Faculty of Mathematics and Computer Science , Adam Mickiewicz University, Poznań , Uniwersytetu Poznańskiego 4 61-614 , Poznań , Poland

3. Department of Mathematics Faculty of Informatics and Control Systems , Georgian Technical University , 77, Kostava St ., Tbilisi , Georgia

Abstract

Abstract We establish necessary and sufficient conditions for the compactness of fractional integral operators from Lp (X, μ) to Lq (X, μ) with 1 < p < q < ∞, where μ is a measure on a quasi-metric measure space X. As an application we obtain criteria for the compactness of fractional integral operators defined in weighted Lebesgue spaces over bounded domains of the Euclidean space ℝ n with the Lebesgue measure, and also for the fractional integral operator associated to rectifiable curves of the complex plane.

Publisher

Walter de Gruyter GmbH

Subject

Applied Mathematics,Analysis

Reference19 articles.

1. D.R. Adams and L.I. Hedberg, Function Spaces and Potential Theory. Springer–Verlag, Berlin (1996).

2. P.G. Dodds and D.H. Fremlin, Compact operators in Banach lattices. Israel J. Math. 34, No 4 1979), 287–320.

3. D.E. Edmunds, V. Kokilashvili and A. Meskhi, Bounded and Compact Integral Operators. Kluwer Academic Publishers, Dordrecht (2002).

4. J. Garcia–Cuerva and A.E. Gatto, Boundedness properties of fractional integral operators associated to non-doubling measures. Studia Math. 162 (2004), 245–261.

5. A. Grothendieck, Sur les applications liněaires faiblement compactes d’espaces du type C(K). Canadian J. Math. 5 (1953), 129–173.

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1. Compactness of Fractional Type Integral Operators on Spaces of Homogeneous Type;Journal of Mathematical Sciences;2022-11-24

2. Fractional integrals with measure in grand Lebesgue and Morrey spaces;Integral Transforms and Special Functions;2020-10-13

3. Fractional order elliptic problems with inhomogeneous Dirichlet boundary conditions;Fractional Calculus and Applied Analysis;2020-04-01

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