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Recolector de Ciencia Abierta, RECOLECTA
Doctoral thesis . 2006
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Grafos contractibles a un grafo completo

Authors: Valenzuela Tripodoro, Juan Carlos;

Grafos contractibles a un grafo completo

Abstract

Los objetivos de esta tesis se pueden enmarcar dentro de la Teoría Extremal de Grafos. Uno de los problemas más conocidos en este ámbito es el denominado Problema de Turán consistente en estudiar el tamaño posible de un grafo libre de subgrafos completos. Asimismo, han ido apareciendo a lo largo de los últimos años distintos problemas extremales com o extensión o generalización del Problema de Turán. Es este tipo de problemas en el que se centra el estudio que reflejado en esta memoria. En particular, se analiza una de dichas extensiones denominada Problema de Turán con contracción de aristas o Problema de Turán para menores completos, en la que se trata de obtener el mayor tamaño posible de un grafo de orden n no contractible aun grafo completo de orden p, es decir, sin contener un subgrafo a partir del cual se pueda obtener un grafo completo con p vértices mediante una cantidad finita de contracciones de aristas. Paralelamente, como en todo problema extremal, se plantea la cuestión de caracterizar aquellos grafos que alcancen dicho valor extremo, denominados grafos extremales. También se estudian dos generalizaciones del Problema de Turán a grafos bipartitos: el Problema de Zarankiewicz y el Problema de Turán en grafos bipartitos. En este caso se trata de obtener el mayor número de aristas en un grafo bipartito de modo que no contenga un subgrafo bipartito completo Ks,t.

Premio Extraordinario de Doctorado US

Country
Spain
Related Organizations
Keywords

Grafos, Teoría de

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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