a1 Graduate School of Mathematical Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku Tokyo 153-8914, Japan (email: firstname.lastname@example.org)
The relation between the fractional integral operator and the fractional maximal operator is investigated in the framework of Morrey spaces. Applications to the Fefferman–Phong and the Olsen inequalities are also included.
(Received February 20 2009)
(Accepted September 01 2009)
2000 Mathematics subject classification
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