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thecs
Jan11-11, 06:35 PM
Hello :smile: I need some help understanding the following paper by P. Erdős:

SOME REMARKS ON THE THEORY OF GRAPHS, 1947

http://www1.spms.ntu.edu.sg/~ymchee/MAS790_files/prob.pdf

In particular, how to prove (2):

0.5logn < A(n)

Where n is the size of the vertex set in a graph G, and A(n) is the largest integer such that either G or G' contains a complete subgraph of order A(n).

Also I'm more interested in the case where G is bipartite.


Any help would be great, thanks.