Journal of the
Korean Mathematical Society
JKMS

ISSN(Print) 0304-9914 ISSN(Online) 2234-3008

Article

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J. Korean Math. Soc. 2001; 38(6): 1117-1123

Printed November 1, 2001

Copyright © The Korean Mathematical Society.

On the transfinite powers of the Jacobson radical of a DICC ring

Toma Albu and Mark L. Teply

Bucharest University and University of Wisconsin-Milwaukee

Abstract

A ring is a DICC ring if every chain of right ideals indexed by the integers stabilizes to the left or to the right or to both sides. A counterexample is given to an assertion of Karamzadeh and Motamedi that a transfinite power of the Jacobson radical of a right DICC ring is zero. We determine the behavior of the trans-finite powers of the Jacobson radical relative to a torsion theory and consequently can obtain their correct behavior in the classical setting.

Keywords: Jacobson radical, torsion theory, DICC module