Boundedness Criterion for Multi-sublinear Operators and Their Commutators Generated by Multilinear Fractional Integral Operator on Product Generalized Mixed Morrey Spaces
Frontiers of Mathematics(2024)
摘要
The purpose of this paper is to study the boundedness for a large class of multi-sublinear operators T α,m generated by multilinear fractional integral operator and their commutators T_α ,m,i^b (i = 1, … m) on product generalized mixed Morrey spaces M_q_1^φ _1(ℝ^n) ×⋯× M_q_m^φ _m(ℝ^n) . We find sufficient conditions on ( ϕ 1 , …, ϕ m , ϕ ) which ensure the boundedness of T α,m from M_q_1^φ _1(ℝ^n) ×⋯× M_q_m^φ _m(ℝ^n) to M_p⃗^φ (ℝ^n) . Moreover, we also give sufficient conditions for the boundedness of T α,m,i from M_q_1^φ _1(ℝ^n) ×⋯× M_q_m^φ _m(ℝ^n) to M_p⃗^φ (ℝ^n) . As applications, the boundedness for multi-sublinear fractional maximal operator, multilinear fractional integral operator and their commutators on product generalized mixed Morrey spaces is established.
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关键词
Generalized mixed Morrey space,multi-sublinear fractional maximal operator,multilinear fractional integral operator,BMO,commutator
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