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Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2020.tde-19022020-083120
Document
Author
Full name
Claudia Rebouccas Lima Fernandes
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2001
Supervisor
Committee
Saia, Marcelo José (President)
Kakuta, Neuza Kazuko
Ruas, Maria Aparecida Soares
Title in Portuguese
Fecho integral de ideais analíticos e equisingularidade
Keywords in Portuguese
Não disponível
Abstract in Portuguese
Motivados por um resultado de B. Teissier que caracteriza algebricamente a Whitney equisingularidade de hipersuperfícies complexas em termos do fecho integral de um certo ideal, estudamos nesse trabalho um teorema, também devido a B. Teissier, no qual são apresentadas condições equivalentes para um elemento pertencer ao fecho integral de um ideal. Utilizando esse teorema, fazemos um estudo no qual relacionamos o fecho integral, poliedro de Newton e multiplicidade de ideais Newton não-degenerados. Finalmente, aplicamos os resultados sobre fecho integral de ideais para a questão da equisingularidade de Whitney de famílias de hipersuperfícies complexas e a trivialidade topológica de famílias de germes de funções.
Title in English
Not available
Keywords in English
Not available
Abstract in English
Motivated for a result of B. Teissier which characterizes agebrica11y the Whitney equisingularity of complex hypersurfaces in terms of the integral closure of a certain ideal, we study in this work a theorem, also due the B. Teissier, in which are presented conditions equivalents for an element to belong to the integral closure of an ideal. Using this theorem, we make a study in which we relate the integral closure, polyhedron of Newton and multiplicity of Newton non-degenerate ideals. Finally, we apply the results on integral closure of ideais to the question of Whitney equisingularity of families of complex hypersurfaces and the topological triviality of families of germs of functions.
 
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Publishing Date
2020-02-19
 
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