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REPORTS > KEYWORD > TRIANGLE-FREE GRAPHS:
Reports tagged with triangle-free graphs:
TR01-049 | 11th July 2001
Stasys Jukna, Georg Schnitger

On Multi-Partition Communication Complexity of Triangle-Freeness

Comments: 2

We show that recognizing the $K_3$-freeness and $K_4$-freeness of
graphs is hard, respectively, for two-player nondeterministic
communication protocols with exponentially many partitions and for
nondeterministic (syntactic) read-$s$ times branching programs.

The key ingradient is a generalization of a coloring lemma, due to
Papadimitriou and Sipser, which says that for every ... more >>>




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