Abstract
Necessary and sufficient condition governing the boundedness of the multilinear fractional integral operator \(T_{\gamma , \mu }\) defined with respect to a measure \(\mu \) on a \(\sigma \)-algebra of Borel sets of quasi-metric space X from the product \(L^{p_1}(X, \mu )\times \cdots \times L^{p_m}(X, \mu )\) to \(L^q(X, \mu )\) is established. The related weak type inequality is also obtained. The derived results are used to get appropriate boundedness of \(T_{\gamma , \mu }\) in Morrey spaces defined with respect to a measure \(\mu \).
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The authors are grateful to the anonymous referee for remarks which led to an improvement of the manuscript.
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M. Mastyło was supported by the National Science Centre, Poland, Project No. 2015/17/B/ST1/00064.
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Kokilashvili, V., Mastyło, M. & Meskhi, A. On the Boundedness of Multilinear Fractional Integral Operators. J Geom Anal 30, 667–679 (2020). https://doi.org/10.1007/s12220-019-00159-6
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DOI: https://doi.org/10.1007/s12220-019-00159-6
Keywords
- Multilinear fractional integrals
- Spaces defined with respect to measure
- Quasi-metric measure spaces
- Morrey spaces