Involutions and Anticommutativity in Group Rings - BV FAPESP
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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Involutions and Anticommutativity in Group Rings

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Author(s):
Goodaire, Edgar G. [1] ; Milies, Cesar Polcino [2]
Total Authors: 2
Affiliation:
[1] Mem Univ Newfoundland, St John, NF A1C 5S7 - Canada
[2] Univ Sao Paulo, Inst Matemat & Estat, BR-05314970 Sao Paulo - Brazil
Total Affiliations: 2
Document type: Journal article
Source: CANADIAN MATHEMATICAL BULLETIN-BULLETIN CANADIEN DE MATHEMATIQUES; v. 56, n. 2, p. 344-353, JUN 2013.
Web of Science Citations: 4
Abstract

Let g -> g{*} denote an involution on a group G. For any (commutative, associative) ring R (with 1), {*} extends linearly to an involution of the group ring RG. An element alpha is an element of RG is symmetric if alpha{*} = alpha and skew-symmetric if alpha{*} = alpha. The skew-symmetric elements are closed under the Lie bracket, {[}alpha, beta] = alpha beta - beta alpha. In this paper, we investigate when this set is also closed under the ring product in RG. The symmetric elements are closed under the Jordan product, alpha o beta = alpha beta + beta alpha. Here, we determine when this product is trivial. These two problems are analogues of problems about the skew-symmetric and symmetric elements in group rings that have received a lot of attention. (AU)

FAPESP's process: 04/15319-3 - Groups and noncommutative algebra: interactions and applications
Grantee:Francisco Cesar Polcino Milies
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 08/57553-3 - Edgar George Goodaire | Memorial University of Newfoundland - Canada
Grantee:Francisco Cesar Polcino Milies
Support Opportunities: Research Grants - Visiting Researcher Grant - International