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dc.creatorCorach, Gustavo-
dc.creatorDuggal, Bhaggy-
dc.creatorHarte, Robin-
dc.date2016-01-04T20:04:30Z-
dc.date2016-01-04T20:04:30Z-
dc.date2013-01-
dc.date2016-03-30 10:35:44.97925-03-
dc.date.accessioned2019-04-29T15:41:03Z-
dc.date.available2019-04-29T15:41:03Z-
dc.date.issued2016-01-04T20:04:30Z-
dc.date.issued2016-01-04T20:04:30Z-
dc.date.issued2013-01-
dc.date.issued2016-03-30 10:35:44.97925-03-
dc.identifierCorach, Gustavo; Duggal, Bhaggy ; Harte, Robin; Extensions of Jacobson's Lemma; Taylor; Communications In Algebra; 41; 1-2013; 520-531-
dc.identifier0092-7872-
dc.identifierhttp://hdl.handle.net/11336/3306-
dc.identifier.urihttp://rodna.bn.gov.ar:8080/jspui/handle/bnmm/299448-
dc.descriptionJacobson’s Lemma says that if a c ∈ A thenac − 1 ∈ A−1 ⇐⇒ ca − 1 ∈ A−1 which holds separately for the left and the right invertibles of A, as well as for the non zero-divisors of A. In this note, we generalize the identity above and many of its relatives from ca − 1 to certain ba − 1: specifically we will suppose aba = aca. Three special cases are of interest: the case b = c which will give Jacobson’s lemma; the case in which aba = aca = a in which both b and c are generalized inverses of a ∈ A; and the case aba = a^2 in which c = 1. This last case goes back to Vidav; in particular, Schmoeger shows that aba=a^2 holds if there are idempotents p = p^2 q = q^2 for which a = qp and b = pq. The central results in this note are of course pure algebra: but in the neighboring realm of topological algebra they have very close relatives, and we take the opportunity to extend our purely algebraic observations to their topological analogues.-
dc.descriptionFil: Corach, Gustavo. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Matemática; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Saavedra 15. Instituto Argentino de Matemática; Argentina-
dc.descriptionFil: Duggal, Bhaggy . Visegradska. Faculty of Science and Mathematics. Department of Mathematics; Serbia-
dc.descriptionFil: Harte, Robin. Universidad de Dublin; Irlanda-
dc.formatapplication/pdf-
dc.formatapplication/pdf-
dc.languageeng-
dc.publisherTaylor-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/10.1080/00927872.2011.602274-
dc.relationinfo:eu-repo/semantics/altIdentifier/doi/http:/dx.doi.org/10.1080/00927872.2011.602274-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rightshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/-
dc.sourcereponame:CONICET Digital (CONICET)-
dc.sourceinstname:Consejo Nacional de Investigaciones Científicas y Técnicas-
dc.sourceinstacron:CONICET-
dc.subjectJACOBSON'S LEMMA-
dc.subjectOPERATOR-
dc.subjectRESOLVENT-
dc.subjectMatemática Pura-
dc.subjectMatemáticas-
dc.subjectCIENCIAS NATURALES Y EXACTAS-
dc.titleExtensions of Jacobson's Lemma-
dc.typeinfo:eu-repo/semantics/article-
dc.typeinfo:eu-repo/semantics/publishedVersion-
dc.typeinfo:ar-repo/semantics/articulo-
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