Prove that a graph with chromatic number equal to k has at least (
k
2
) edges.

Name: Problem 6, Chapter 12: Introductory Combinatorics
Uploaded: 2020-08-02T04:28:10-08:00
Duration: 42 s
Channel: Nick Johnson
Description: Prove that a graph with chromatic number equal to k has at least ( k 2 ) edges.

Question

Prove that a graph with chromatic number equal to k has at least (
    k 
     2
) edges.

Nick Johnson · Accepted Answer

step 1 So here we&#x27;re asked what can be said about the chromatic number of a graph that has k -s -n as a

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