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Citation: Xu, Gui Qiao et Liu, Yong Ping, The Average Widths of SobolevWiener Classes and BesovWiener Classes, Acta mathematica Sinica. English series (Print) , 20(1), 2004, pp. 81-92

Authors: Li, Ren Suo Liu, Yong Ping

Citation: Li, Ren Suo et Liu, Yong Ping, Best m-term one-sided trigonometric approximation of some function classes defined by a kind of multipliers, Acta mathematica Sinica. English series (Print) , 26(5), 2010, pp. 975-984

Authors: Xu, Gui Qiao Sun, Yong Sheng Liu, Yong Ping

Citation: Xu, Gui Qiao et al., N-Widths and Average Widths of Besov Classes in Sobolev Spaces, Acta mathematica Sinica. English series (Print) , 22(6), 2006, pp. 1667-1678

Authors: Liu, Yong Ping Song, Chun Yuan

Citation: Liu, Yong Ping et Song, Chun Yuan, Dunkl.s theory and best approximation by entire functions of exponential type in L 2-metric with power weight, Acta mathematica Sinica. English series (Print) , 30(10), 2014, pp. 1748-1762