Essential Norms of Weighted Composition Operators from Hilbert Function Spaces into Zygmund-Type Spaces

2015 ◽  
Vol 12 (4) ◽  
pp. 1357-1375 ◽  
Author(s):  
Flavia Colonna ◽  
Maria Tjani
Keyword(s):  
Hilbert Function ◽  
Composition Operators ◽  
Function Spaces ◽  
Weighted Composition Operators ◽  
Type Spaces ◽  
Weighted Composition ◽  
Hilbert Function Spaces

Essential norm of weighted composition operators

Analysis ◽  
2018 ◽  
Vol 38 (3) ◽  
pp. 145-154
Author(s):  
Kuldip Raj ◽  
Charu Sharma
Keyword(s):  
Composition Operators ◽  
Essential Norm ◽  
Function Spaces ◽  
Weighted Composition Operators ◽  
Closed Range ◽  
Weighted Composition

Abstract In the present paper we characterize the compact, invertible, Fredholm and closed range weighted composition operators on Cesàro function spaces. We also make an effort to compute the essential norm of weighted composition operators.

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