J. Korean Math. Soc. 2013; 50(1): 137-159
Printed January 1, 2013
https://doi.org/10.4134/JKMS.2013.50.1.137
Copyright © The Korean Mathematical Society.
Kei Ji Izuchi and Kou Hei Izuchi
Niigata University, Yamaguchi University
It is studied the linear combinations of composition operators on the Banach space of bounded harmonic functions on the open unit disk. We determine the essential norm of them.
Keywords: essential norm, linear combination of composition operators, Banach space of bounded harmonic functions
MSC numbers: 47B33, 46J15
© 2022. The Korean Mathematical Society. Powered by INFOrang Co., Ltd