On graphs with a large chromatic number that contain no small odd cycles

Autor: I. I. Bogdanov, S. L. Berlov
Rok vydání: 2012
Předmět:
Zdroj: Journal of Mathematical Sciences. 184:573-578
ISSN: 1573-8795
1072-3374
DOI: 10.1007/s10958-012-0882-4
Popis: In this paper, we present lower bounds for the number of vertices in a graph with a large chromatic number that does not contain small odd cycles. Bibliographyy 6 titles.
Databáze: OpenAIRE