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Master's Dissertation
DOI
https://doi.org/10.11606/D.45.2019.tde-07062019-120616
Document
Author
Full name
Rubens Rodrigues Onishi
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2019
Supervisor
Committee
Junqueira, Lucia Renato (President)
Aurichi, Leandro Fiorini
Passos, Marcelo Dias
Title in Portuguese
Uma introdução ao cálculo das partições para espaços topológicos
Keywords in Portuguese
Cubo de Cantor
Derivativa de Cantor-Bendixson
Ordinais
Relação de partição para espaços topológicos
Abstract in Portuguese
O objetivo deste trabalho é apresentar o cálculo das partições para espaços topológicos. Essa área trata do estudo de resultados do seguinte tipo: "dados os espaços topológicos X e Y, um número natural n e um cardinal kappa, para qualquer que seja a partição de [X]^n em kappa pedaços, existe um subespaço H de X homeomorfo ao Y tal que [H]^n está contido num mesmo pedaço". Iremos estudar esse tipo de afirmação, principalmente no caso em que n = 1 e Y é igual a um ordinal enumerável ou igual ao omega_1. Também veremos resultados que envolvem o cubo de Cantor.
Title in English
An introduction to partition calculus for topological spaces
Keywords in English
Cantor cube
Cantor-Bendixson derivative
Ordinals
Topological partition relation
Abstract in English
The purpose of this work is to present the partition calculus for topological spaces. This area deals with the study of results of the following type: "given the topological spaces X and Y, a natural number n and a cardinal number kappa, for whatever the partition of [X]^n into kappa pieces, there is a subspace H of X homeomorphic to Y such that [H]^n is contained in the same piece". We will study results of this type mainly in the case where n = 1 and Y is a countable ordinal or the omega_1. We will also see results involving the Cantor cube.
 
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DissRubens.pdf (950.72 Kbytes)
Publishing Date
2019-06-10
 
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