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Doctoral Thesis
DOI
https://doi.org/10.11606/T.45.2022.tde-18112022-233840
Document
Author
Full name
Jackeline Conrado
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2022
Supervisor
Committee
Brito, Fabiano Gustavo Braga (President)
Almeida, Sebastiao Carneiro de
Nunes, Giovanni da Silva
Piccione, Paolo
Ramos, Álvaro Krüger
Title in English
Minimally immersed surfaces in the unit tangent bundle of the 2-sphere arising from area-minimizing unit vector fields on S² \{N,S}
Keywords in English
Clifford torus
Klein bottle
Minimal surface
Round projective space
Unit tangent bundle
Volume of a unit vector field
Abstract in English
The aim of this work is twofold. Firstly, for the unit vector fields on S²\{N,S} with even Poincaré indexes other than zero or two, we prove that the topological closure of their image coincides with the image of minimally immersed Klein bottles in T¹S². Secondly, we establish a relationship between the Clifford Torus and the North-South and South-North unit vector field. More specifically, we prove that the topological closure of the union of the images of the North-South and the South-North vector fields in T¹S² is an embedded Clifford Torus.
Title in Portuguese
Superfícies minimamente imersas no fibrado tangente unitário da esfera Euclidiana que surgem de campos vetoriais unitários minimizantes de área na S²\{N,S}
Keywords in Portuguese
Espaço projetivo redondo
Fibrado tangente unitário
Garrafa de Klein
Superfícies mínimas
Toro de Clifford
Volume de campos vetoriais unitários
Abstract in Portuguese
Este trabalho tem dois objetivos. Primeiramente, para todo campo vetorial unitário sobre S²{N,S} com índice de Poincaré par diferente de zero e dois, provamos que o fecho topológico de sua imagem coincide com a imagem de uma garrafa de Klein minimamente imersa em T¹S². Em segundo lugar, estabelecemos uma relação entre o Toro de Clifford e os campos vetoriais unitários Norte-Sul e Sul-Norte. Mais especificamente, provamos que o fecho topológico da união das imagens dos campos vetoriais Norte-Sul e Sul-Norte em T¹S² é um Toro de Clifford mergulhado.
 
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Publishing Date
2023-01-09
 
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