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Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2006.tde-01092006-181011
Document
Author
Full name
Gabriela Castro Vieira da Silva
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2005
Supervisor
Committee
Saia, Marcelo José (President)
Hernandes, Marcelo Escudeiro
Manoel, Miriam Garcia
Title in Portuguese
Trivialidade topológica em germes de hipersuperfícies e poliedros de Newton
Keywords in Portuguese
poliedros Newton
trivialidade topológica
Abstract in Portuguese
Uma das questões mais importantes em Teoria de Singularidades é a determinação de condições que garantam a trivialidade topológica em famílias de germes de funções ou aplicações. Neste trabalho é feito um estudo a fim de descrever condições necessárias e suficientes para a trivialidade topológica em famílias de germes de funções com singularidade isolada. Para isto, são apresentados dois métodos. O primeiro é o de campos de vetores controlados, baseado nos trabalhos de Damon-Gaffney e Yoshinaga. O segundo relaciona invariantes associados às famílias de germes de funções com a trivialidade topológica destas. Em ambos os casos, a principal ferramenta é a construção de poliedros de Newton associados às famílias.
Title in English
Topological triviality in germs of hypersufaces and Newton polyhedra
Keywords in English
Newton polyhedra
topological triviality
Abstract in English
One of the most important questions in Theory of Singularities is the determination of conditions that guarantee the topological triviality in families of germs of functions or mappings. In this work a study is made in order to describe necessaries and sufficients conditions for the topological triviality in families of germs of functions with isolated singularity. For this, two methods are presented. The first one is controlled vectors fields method, based on the works of Damon-Gaffney and Yoshinaga. The second relates invariants associated with families of germs of functions with the topological triviality of these. In both cases, the main tool used is the construction of Newton polyhedra associated with families.
 
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Publishing Date
2006-09-22
 
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