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Nilpotent cohomology classes and some examples of groups

✍ Scribed by Ioannis Emmanouil

Publisher: Elsevier Science
Year: 2001
Tongue: English
Weight: 121 KB
Volume: 163
Category: Article
ISSN: 0022-4049
DOI: 10.1016/s0022-4049(00)00133-x

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✦ Synopsis

In view of its importance for the study of idempotents in group rings, a certain class C of groups, deÿned by means of a cohomological condition, was introduced by Emmanouil (Invent. Math. 132 (1998) 307-330). In the present paper, we establish the limitation of that class by constructing explicit examples of groups that do not satisfy that cohomological condition.

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