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graph theory Let W_n be the wheel graph on n + 1 vertices (that is, a cycle C_n on n vertices
with an additional vertex adjacent to all the other vertices). Find chi (W_n; k).
Solution
answer is 3, because the n+1th vertex which is connected to all other vertices has to be given a
different color than all other nodes and for a cycle 2 colors are sufficient

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  • 1. graph theory Let W_n be the wheel graph on n + 1 vertices (that is, a cycle C_n on n vertices with an additional vertex adjacent to all the other vertices). Find chi (W_n; k). Solution answer is 3, because the n+1th vertex which is connected to all other vertices has to be given a different color than all other nodes and for a cycle 2 colors are sufficient