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检索条件"主题词=sharp bounds"
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sharp bounds for Hardy type operators on higher-dimensional product spaces
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Frontiers of Mathematics in China 2018年 第6期13卷 1341-1353页
作者: Qianjun HE Xiang LI Dunyan YAN School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049 China
We investigate a class of fractional Hardy type operators $${\mathscr{H}_{{\beta _1},{\beta _2}, \ldots ,{\beta _m}}}$$ ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
Multilinear Hausdorff Operators and Their Best Constants
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Acta Mathematica Sinica,English Series 2012年 第8期28卷 1521-1530页
作者: Jie Cheng CHEN Da Shan FAN Chun Jie ZHANG Department of Mathematics Zhejiang Normal University Department of Mathematics Zhejiang University Department of Mathematics University of Wisconsin-MilwaukeeMilwaukeeWI53201USA School of Science Hangzhou Dianzi University
In this paper, we study two different extensions of the Hausdorff operator to the multilinear case. Boundedness on Lebesgue spaces and Herz spaces is obtained. The bound on the Lebesgue space is optimal. Our results a... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
Spectral Gap of the Largest Eigenvalue of the Normalized Graph Laplacian
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Communications in Mathematics and Statistics 2022年 第3期10卷 371-381页
作者: Jürgen Jost Raffaella Mulas Florentin Münch Max Planck Institute for Mathematics in the Sciences LeipzigGermany
We offer a new method for proving that the maxima eigenvalue of the normalized graph Laplacian of a graph with n vertices is at least n+1/n−1 provided the graph is not complete and that equality is attained if and onl... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论