5Popov V A, Szabados J. On the convergence and saturation of the Jackson polynoinasls in Lp spases [J]. Approx Theory and its Application, 1984,1 (1): 1～10.
6Ding Xiaxi, He Yuzan, Luo Peizhu. Theory of Bα space and its appli-cation [M]. Beijing: Beijing Science Press, 1992.
7Ding Xiaxi, Luo Peizhu. Bα Space and some estimates of Laplace opera tor[J]. J Sys Sci and Math Sci, 1981,1(1) :9 ～33.
8Chen Guangrong, Meng Boqin. Interpolation of Bα space [J]. Acta Math Scientia,1998,8(1) :1～10.
10Sheng Baohuai, Liu Sanyang. Direct and inverse theorems for Jackson means of entire exponential type in Ba spaces. Acta Mathematica Scientia, 1999, 19(5): 497-504.
