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: Wednesday, August 14, 2013, 12:15 pm

Duration: 30 minutes

Location: CAB G51

Speaker: Mathias Schacht (Universität Hamburg)

On the structure of dense graphs with small clique number

We are interested in structural properties of large and dense graphs G=(V,E) that do not contain a copy of a fixed small graph F. In this talk F will be a small clique, *density* will be given a condition on the minimum degree of G, and *structural properties* are captured by studying homomorphic images of G. In particular, we give an alternative proof of a recent result of Goddard and Lyle, which determines the infimum over all α>0 such that every Kt-free graph G with minimum degree bigger than α|V(G)| has a Kt-free, homomorphic image of order at most K=K(α).

This is joint work with Heiner Oberkampf.


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