Communications of the
Korean Mathematical Society CKMS

ISSN(Print) 1225-1763 ISSN(Online) 2234-3024
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Commun. Korean Math. Soc. 1995; 10(4): 907-916

Printed December 1, 1995

Copyright © The Korean Mathematical Society.

On the unicellularity of an operator

Joo Ho Kang, Young Soo Jo

Taegu University, Keimyung University

Abstract

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The unilateral weighted shift operator $W_r$ with the weighted sequence $\{ r^n \}_{n=1}^\infty$ is unicellular if $0

Keywords: invariant subspace, unicellularity, unilateral weighted shift

MSC numbers: 47A15, 47B37

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