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BILINEAR SPECTRAL MULTIPLIERS ON HEISENBERG GROUPS 被引量:2
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作者 Naiqi SONG Heping LIU jiman zhao 《Acta Mathematica Scientia》 SCIE CSCD 2021年第3期968-990,共23页
As we know,thus far,there has appeared no definition of bilinear spectral multipliers on Heisenberg groups.In this article,we present one reasonable definition of bilinear spectral multipliers on Heisenberg groups and... As we know,thus far,there has appeared no definition of bilinear spectral multipliers on Heisenberg groups.In this article,we present one reasonable definition of bilinear spectral multipliers on Heisenberg groups and investigate its boundedness.We find some restrained conditions to separately ensure its boundedness from C0(H^(n))×L^(2)(H^(n))to L^(2)(H^(n)),from L2(H^(n))×C0(H^(n))to L^(2)(H^(n)),and from L^(p)×L^(q) to L^(r) with 2<p,q<∞,2≤r≤∞. 展开更多
关键词 Bilinear spectral multipliers Heisenberg groups BOUNDEDNESS
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Variable Hardy Spaces on the Heisenberg Group
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作者 Jingxuan Fang jiman zhao 《Analysis in Theory and Applications》 CSCD 2016年第3期242-271,共30页
We consider Hardy spaces with variable exponents defined by grand maximal function on the Heisenberg group. Then we introduce some equivalent characterizations of variable Hardy spaces. By using atomic decomposition a... We consider Hardy spaces with variable exponents defined by grand maximal function on the Heisenberg group. Then we introduce some equivalent characterizations of variable Hardy spaces. By using atomic decomposition and molecular decomposition we get the boundedness of singular integral operators on variable Hardy spaces. We investigate the Littlewood-Paley characterization by virtue of the boundedness of singular integral operators. 展开更多
关键词 Hardy spaces variable exponents Heisenberg group atomic decomposition Littlewood-Paley characterization.
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LOCALIZATION OPERATORS ASSOCIATED WITH THE SPHERICAL MEAN OPERATOR
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作者 jiman zhao 《Analysis in Theory and Applications》 2005年第4期317-325,共9页
In this paper, we define the localization operator associated with the spherical mean operator, and show that the localization operator is not only bounded, but also in Schatten-Von Neumann class. We also give a trace... In this paper, we define the localization operator associated with the spherical mean operator, and show that the localization operator is not only bounded, but also in Schatten-Von Neumann class. We also give a trace formula when the symbol function is a nonnegative function. 展开更多
关键词 Wigner transform localization operator trace formula
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Some Estimates of Bilinear Hausdorff Operators on Stratified Groups
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作者 Qi Zhang jiman zhao 《Analysis in Theory and Applications》 CSCD 2020年第2期200-216,共17页
In this paper,we give four kinds of sharp estimates of two variants of bilinear Hausdorff operators on stratified groups,involving weighted Lebesgue spaces,classical Morrey spaces and central Morrey spaces.Meanwhile,s... In this paper,we give four kinds of sharp estimates of two variants of bilinear Hausdorff operators on stratified groups,involving weighted Lebesgue spaces,classical Morrey spaces and central Morrey spaces.Meanwhile,some necessary and sufficient conditions of boundness are obtained. 展开更多
关键词 Stratified group Hausdorff operator BILINEAR sharp estimate weighted Lebesgue space Morrey space
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