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Item Details
Title: RINGS CLOSE TO REGULAR
By: Askar A. Tuganbaev
Format: Paperback

List price: £90.00


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ISBN 10: 9048161169
ISBN 13: 9789048161164
Publisher: SPRINGER
Pub. date: 8 December, 2010
Edition: Softcover reprint of hardcover 1st ed. 2002
Series: Mathematics and Its Applications 545
Pages: 350
Synopsis: Preface All rings are assumed to be associative and (except for nilrings and some stipulated cases) to have nonzero identity elements. A ring A is said to be regular if for every element a E A, there exists an element b E A with a = aba. Regular rings are well studied. For example, [163] and [350] are devoted to regular rings. A ring A is said to be tr-regular if for every element a E A, there is an element n b E A such that an = anba for some positive integer n. A ring A is said to be strongly tr-regular if for every a E A, there is a positive integer n with n 1 n an E a + An Aa +1. It is proved in [128] that A is a strongly tr-regular ring if and only if for every element a E A, there is a positive integer m with m 1 am E a + A. Every strongly tr-regular ring is tr-regular [38]. If F is a division ring and M is a right vector F-space with infinite basis {ei}~l' then End(MF) is a regular (and tr-regular) ring that is not strongly tr-regular. The factor ring of the ring of integers with respect to the ideal generated by the integer 4 is a strongly tr-regular ring that is not regular.
Illustrations: XII, 350 p.
Publication: Netherlands
Imprint: Springer
Returns: Returnable
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