Bulletin of the
Korean Mathematical Society
BKMS

ISSN(Print) 1015-8634 ISSN(Online) 2234-3016

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Bull. Korean Math. Soc. 2024; 61(6): 1685-1703

Online first article November 22, 2024      Printed November 30, 2024

https://doi.org/10.4134/BKMS.b240006

Copyright © The Korean Mathematical Society.

Some classes of composition operators on Orlicz spaces

Yousef Estaremi; Zhidong Huang

Golestan University; South Kensington Campus, Imperial College London

Abstract

The notions of expansivity and positive expansivity for composition operators on Orlicz spaces are investigated. In particular, necessary and sufficient conditions are given for a composition operator to be expansive, positively expansive, and uniformly expansive. Additionally, equivalent conditions for these concepts are provided in the case that the system is dissipative.

Keywords: Orlicz spaces, composition operators, expansivity, structural stability

MSC numbers: Primary 47B33, 37B65