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Master's Dissertation
DOI
https://doi.org/10.11606/D.45.2016.tde-27012016-090223
Document
Author
Full name
Rafael Veiga Pocai
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2015
Supervisor
Committee
Ferreira, Carlos Eduardo (President)
Faria, Luerbio
Vélez, César Israel Hernández
Title in Portuguese
Problemas computacionais em teoria topológica dos grafos
Keywords in Portuguese
Algoritmos de aproximação
Grafos de comparabilidade
Maxcut
Número de cruzamentos
Número de páginas
Abstract in Portuguese
Este trabalho tem por objetivo estudar os problemas computacionais que surgem ao se relacionar grafos com superfícies bidimensionais, dando especial atenção aos problemas do número de cruzamentos mínimo no plano (CROSSING NUMBER) e a problemas relacionados ao desenho de grafos em livros. Apresentamos uma redução do problema MULTICUT para CROSSING NUMBER, além de um resultado de complexidade em grafos de comparabilidade baseado em um resultado conhecido para desenhos em livros.
Title in English
Computational problems in topological graph theory
Keywords in English
Approximation algorithms
Book thickness
Comparability graphs
Crossing number
Maxcut
Abstract in English
The objective of this text is to study computational problems that emerge from the relation between graphs and bidimensional surfaces, giving special attention to the crossing number problem and graph drawings on books. We present a reduction from MULTICUT to CROSSING NUMBER, in addition to a complexity result on comparability graphs based on a known result about drawings on books.
 
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Publishing Date
2016-01-29
 
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