MATEMATIČKI VESNIK
МАТЕМАТИЧКИ ВЕСНИК



MATEMATIČKI VESNIK
Composition operators and their products on $L^{2}(\Sigma)$
M. R. Jabbarzadeh and S. Karimi

Abstract

The paper gives measure-theoretic characterizations of classical properties of composition operators and their products on $L^2(\Sigma)$ such as complex symmetric and semi-Kato type operators.

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Keywords: Kato operator; conditional expectation; composition operator; multiplication operator; polar decomposition; closed range.

MSC: 47B20, 47B38

Pages:  1--11     

Volume  69 ,  Issue  1 ,  2017