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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 2 of 2 (0.121 seconds)

Spelling suggestions: "subject:"enlaçamentos dde intervalo"" "subject:"enlaçamentos dee intervalo""

1

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

Lima, Juliana Roberta Theodoro de 13 October 2014 (has links)
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
Enlaçamentos de intervalos
Homotopy generalized string links
Homotopy string links
2

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

Juliana Roberta Theodoro de Lima 13 October 2014 (has links)
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
Enlaçamentos de intervalos
Homotopy generalized string links
Homotopy string links

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