Extending Hall's Theorem into List Colorings: A Partial History
Author(s) -
D. G. Hoffman,
Peter D. Johnson
Publication year - 2007
Publication title -
international journal of mathematics and mathematical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 39
eISSN - 1687-0425
pISSN - 0161-1712
DOI - 10.1155/2007/72168
Subject(s) - mathematics , generalization , combinatorics , independence (probability theory) , discrete mathematics , mathematical analysis , statistics
In 1988, A. J. W. Hilton and P. D. Johnson Jr. found a natural generalization of the condition in Philip Hall's celebrated theorem on systems of distinct representatives. This generalization was formed in the relatively new theory of list colorings of graphs. Here we give an account of a strand of development arising from thisgeneralization, concentrating on extensions of Hall's theorem. New results are presented concerning list colorings of independence systems and colorings of graphs with nonnegative measurable functions on positive measure spaces
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