Averaging Principle: Graphs with Less Than n-1 Edges are Disconnected (Maths for Computer Science)

Published on ● Video Link: https://www.youtube.com/watch?v=sVZ4oUbktpo



Duration: 23:18
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Today we see how we can apply the averaging principle to prove a graph-theoretic claim. Notice how we use it here to guarantee the existence of a vertex with a degree at most the average degree (which we bound, using the Handshaking Lemma, which we prove here: https://youtu.be/p5il-zRyjAI).

Time Stamps:
0:00 Opening and reminder of averaging principle
0:42 Theorem: Graphs with less than n-1 edges are disconnected.
2:12 Proof of claim, using the averaging principle.
22:57 Closing

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