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The Generalization of Dirac’s Theorem for Hypergraphs
Author(s) -
Endre Szemerédi,
Andrzej Ruciński,
Vojtěch Rödl
Publication year - 2005
Publication title -
lecture notes in computer science
Language(s) - English
Resource type - Book series
SCImago Journal Rank - 0.249
H-Index - 400
eISSN - 1611-3349
pISSN - 0302-9743
ISBN - 3-540-28702-7
DOI - 10.1007/11549345_5
Subject(s) - counterexample , hamiltonian path , hamiltonian (control theory) , generalization , combinatorics , mathematics , vertex (graph theory) , discrete mathematics , perfect graph , graph theory , perfect graph theorem , graph , computer science , line graph , voltage graph , mathematical optimization , mathematical analysis , graph power
A substantial amount of research in graph theory continues to concentrate on the existence of hamiltonian cycles and perfect matchings. A classic theorem of Dirac states that a sufficient condition for an n-vertex graph to be hamiltonian, and thus, for n even, to have a perfect matching, is that the minimum degree is at least n/2. Moreover, there are obvious counterexamples showing that this is best possible.

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