Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Tuesday, February 24, 2015, 12:15 pm

Duration: 30 minutes

Location: CAB G51

Speaker: Alexander Scott (University of Oxford)

Colouring graphs without odd holes

Gyarfas conjectured in 1985 that if G is a graph with no induced cycle of odd length at least 5, then the chromatic number of G is bounded by a function of its clique number. We prove this conjecture, and discuss some further results.

Joint work with Paul Seymour.


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