Essential Norms of Weighted Differentiation Composition Operators between Zygmund Type Spaces and Bloch Type Spaces

被引:5
|
作者
Sanatpour, Amir H. [1 ]
Hassanlou, Mostafa [2 ]
机构
[1] Kharazmi Univ, Dept Math, Tehran, Iran
[2] Urmia Univ, Shahid Bakeri High Educ Ctr Miandoab, Orumiyeh, Iran
关键词
Weighted differentiation composition operators; generalized weighted composition operators; essential norms; Zygmund type spaces; Bloch type spaces; ANALYTIC-FUNCTIONS; BANACH-SPACES;
D O I
10.2298/FIL1709877S
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study boundedness of weighted differentiation composition operators D-phi,u(k) between Zygmund type spaces Z(alpha) and Bloch type spaces B-beta. We also give essential norm estimates of such operators in different cases of k is an element of N and 0 < alpha, beta < infinity. Applying our essential norm estimates, we get necessary and sufficient conditions for the compactness of these operators.
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页码:2877 / 2889
页数:13
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