Abstract
We obtain the boundedness of parabolic fractional integral operators \(T_{\Omega ,\alpha }\) with variable kernels \(\Omega (\cdot ,\cdot )\) belonging to \(L^{\infty }({\mathbb {R}^n}) \times L^{s}({\mathbb {S}}^{n-1}), s>n/(n-\alpha )\), and their commutators \([b,T_{\Omega ,\alpha }]\) with BMO functions in variable exponent generalized Morrey spaces \(M^{p(\cdot ),\varphi }\) and variable exponent vanishing generalized Morrey spaces \(\textrm{VM}^{p(\cdot ),\varphi }\). We find the sufficient conditions on the pair \((\varphi ,\psi )\) which ensures the boundedness of the operators \(T_{\Omega ,\alpha }\) and \([b,T_{\Omega ,\alpha }]\) from \(M^{p(\cdot ),\varphi }\) to \(M^{q(\cdot ),\psi }\) and from \(\textrm{VM}^{p(\cdot ),\varphi }\) to \(\textrm{VM}^{q(\cdot ),\psi }\).
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Acknowledgements
The research of I. Ekincioglu and A. Serbetci was partially supported by grant of Cooperation Program 2532 TUBITAK - RFBR (RUSSIAN foundation for basic research) (Agreement Number No. 119N455). The authors are grateful to the referee for his/her invaluable suggestions.
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Ekincioglu, I., Khaligova, S.Z. & Serbetci, A. Commutators of parabolic fractional integrals with variable kernels in vanishing generalized variable Morrey spaces. Positivity 26, 82 (2022). https://doi.org/10.1007/s11117-022-00947-5
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DOI: https://doi.org/10.1007/s11117-022-00947-5
Keywords
- Parabolic fractional integral with rough kernel
- Vanishing generalized variable Morrey spaces
- Commutators
- BMO spaces