On Stević-Sharma operator from Q_{K} (p,q) space to Zygmund-type space

Zhitao Guo


The aim of this paper is to investigate the boundedness and compactness of Stevi\'{c}-Sharma operator T_{\psi_{1},\psi_{2},\varphi} from Q_{K}(p,q) and Q_{K,0}(p,q) spaces to Zygmund-type space and little Zygmund-type space. We also give the upper and lower estimations for the norm of T_{\psi_{1},\psi_{2},\varphi}.


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