Abstract:Abstract. Boundedness of generalized fractional integral operators on generalized Morrey spaces and their related results were shown by many authors. We consider one of their results in a wider framework. Moreover, we show some inequalities for another operator on generalized fractional integrals on generalized Morrey spaces.Mathematics subject classification (2010): Primary 26A33, 42B35; Secondary 42B25.
In the present paper we obtain and extend the boundedness property of the Adams type for multilinear fractional integral operators. Also, we deal with the Olsen type inequality.
In the present paper we obtain and extend the boundedness property of the Adams type for multilinear fractional integral operators. Also, we deal with the Olsen type inequality.
“…There are many papers in the literature dealing with this subject, including the case when the spaces and/or the operators have generalized parameters. We refer to the papers [1,4,7,8,11,15,16,17,19,20,22,24,30,34,35,36,38].…”
We consider subspaces of Morrey spaces defined in terms of various vanishing properties of functions. Such subspaces were recently used to describe the closure of C ∞ 0 (R n ) in Morrey norm. We show that these subspaces are invariant with respect to some classical operators of harmonic analysis, such as the Hardy-Littlewood maximal operator, singular type operators and Hardy operators. We also show that the vanishing properties defining those subspaces are preserved under the action of Riesz potential operators and fractional maximal operators.
“…In [20], the second and third authors gave an alternative proof based on a variant of the good-λ inequality of Fefferman and Stein introduced in [5]. In [21], the third author gave another simple proof and extended the result to vector-valued functions.…”
Abstract. The action of the generalized fractional integral operators and the generalized fractional maximal operators is investigated in the framework of Morrey spaces. A typical property of the functions which belongs to Morrey spaces under pointwise multiplication by the generalized fractional integral operators and the generalized fractional maximal operators is established. The boundedness property of the fractional integral operators on the predual of Morrey spaces is shown as well. A counterexample concerning the FeffermanPhong inequality is given by the use of the characteristic function of the Cantor set.
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