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Gordon Royle's user avatar
Gordon Royle's user avatar
Gordon Royle
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13
What is the Tutte polynomial encoding?
Nov 2, 2009
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8
Combinatorial results without known combinatorial proofs
Nov 14, 2009
answer
5
Let $G$ be a graph such that for all $u, v ∈ V (G)$, $u \ne v$, $|N (u) ∩ N (v )|$ is odd. Then show that the number of vertices in $G$ is odd
Mar 6, 2010