Não disponível / The main purpose of this work is to describe the primary obstruction of the existence of sections in a (n-1)-oriented fiber bundle whose fiber is (n-2)-conected. We start generalizing the concept of the Euler Class, for (n-1)-oriented fiber bundle and then we prove that this class is the primary obstruction if the fiber is (n-2)-conected. As an application we exhibit result about the topological classification of three dimensional manifolds.
| Identifer | oai:union.ndltd.org:usp.br/oai:teses.usp.br:tde-02042019-103517 |
| Date | 30 March 1989 |
| Creators | Barros, Rui Marcos de Oliveira |
| Contributors | Biasi, Carlos |
| Publisher | Biblioteca Digitais de Teses e Dissertações da USP |
| Source Sets | Universidade de São Paulo |
| Language | Portuguese |
| Detected Language | English |
| Type | Dissertação de Mestrado |
| Format | application/pdf |
| Rights | Liberar o conteúdo para acesso público. |
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