tailieunhanh - Báo cáo hóa học: " Research Article Commutators of Littlewood-Paley Operators on the Generalized Morrey Space"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Commutators of Littlewood-Paley Operators on the Generalized Morrey Space | Hindawi Publishing Corporation Journal of Inequalities and Applications Volume 2010 Article ID 961502 20 pages doi 2010 961502 Research Article Commutators of Littlewood-Paley Operators on the Generalized Morrey Space Yanping Chen 1 Yong Ding 2 and Xinxia Wang3 1 Department of Mathematics and Mechanics Applied Science School University of Science and Technology Beijing Beijing 100083 China 2 Laboratory of Mathematics and Complex Systems BNU School of Mathematical Sciences Beijing Normal University Ministry of Education Beijing 100875 China 3 The College of Mathematics and System Science Xinjiang University Urumqi Xinjiang 830046 China Correspondence should be addressed to Yanping Chen yanpingch@ Received 6 May 2010 Accepted 11 July 2010 Academic Editor Shusen Ding Copyright 2010 Yanping Chen et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Let pQ pf and pf denote the Marcinkiewicz integral the parameterized area integral and the parameterized Littlewood-Paley gf function respectively. In this paper the authors give a characterization of BMO space by the boundedness of the commutators of pQ pf and p f on the generalized Morrey space Lp f Rn . 1. Introduction Let Sn-1 x e Rn x 1 be the unit sphere in Rn equipped with the Lebesgue measure dơ. Suppose that Q satisfies the following conditions. a Q is the homogeneous function of degree zero on Rn 0 that is Q px Q x for any p 0 x e Rn 0 . b Q has mean zero on Sn 1 that is Q x dơ x 0. Sn-1 2 Journal of Inequalities and Applications c Q e Lip Sn 1 that is Q x - Q y x - y for any x y e Sn 1. In 1958 Stein 1 defined the Marcinkiewicz integral of higher dimension yQ as aw 1 dt 1 2 Fa t x 3 0 t where Fnrt x Q x - y x-y t x - y n-1 fyXy. We refer to see 1 2 for the properties of yQ. Let 0 w n and 1 1. The parameterized area .

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