2009/08/31

Subgraph of a hypercube

PTT Math 板上出現了有趣的問題~~

"Given an n-node graph G with |V(G)| \leq 2^n, with deg(x) \leq n for all node x,
for what condition we can say that G is a subgraph of a hypercube Q_n?"

Pretty interesting question...
We know that labeling may help,
and G must be bipartite and K_{2,3}-free,
maybe I'll think about it tomorrow :S

And an algorithm for subgraph isomorphism problem in bipartite graphs?

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