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Ordering homotopy string links over surfaces and a presentation for the generalized string links over surfaces / Ordenando os grupos de homotopia de enlaçamentos de intervalos em supefícies e uma apresentação para os grupos de homotopia de enlaçamentos de intervalos em superfícies

In this work, we prove that the set of link-homotopy classes of generalized string links over a closed, connected and orientable surface M of genus g ≥ 1 form a group, denoted by Bn(M) and we find a presentation for it. Moreover, we prove that its normal subgroup PBnn(M), namely, the homotopy string links over M, is bi-orderable. These results extend results proved by Juan GonzalezMeneses in [GM], [GM2] and Ekaterina Yurasovskaya in [Y], respectively. Also, we obtain an exact sequence for link-homotopy braid groups, which is an extension of [Go, Theorem 1]. / Sem resumo

Identiferoai:union.ndltd.org:IBICT/oai:teses.usp.br:tde-28042015-155522
Date13 October 2014
CreatorsJuliana Roberta Theodoro de Lima
ContributorsDenise de Mattos, Dale Rolfsen, Adam Joseph Clay, Alice Kimie Miwa Libardi, Thiago de Melo, Pedro Luiz Queiroz Pergher
PublisherUniversidade de São Paulo, Matemática, USP, BR
Source SetsIBICT Brazilian ETDs
LanguageEnglish
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/publishedVersion, info:eu-repo/semantics/doctoralThesis
Sourcereponame:Biblioteca Digital de Teses e Dissertações da USP, instname:Universidade de São Paulo, instacron:USP
Rightsinfo:eu-repo/semantics/openAccess

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