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Transactions of the American Mathematical Society

ISSN 1088-6850(online) ISSN 0002-9947(print)

 

 

Equivariant cohomology and lower bounds for chromatic numbers


Author: Igor Kříž
Journal: Trans. Amer. Math. Soc. 333 (1992), 567-577
MSC: Primary 05C15; Secondary 05C65, 55N91, 55T99, 55U99
DOI: https://doi.org/10.1090/S0002-9947-1992-1081939-3
Correction: Trans. Amer. Math. Soc. 352 (2000), 1951-1952.
MathSciNet review: 1081939
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Abstract: We introduce a general topological method for obtaining a lower bound of the chromatic number of an $ n$-graph. We present numerical lower bounds for intersection $ n$-graphs.


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DOI: https://doi.org/10.1090/S0002-9947-1992-1081939-3
Article copyright: © Copyright 1992 American Mathematical Society