The crossing indicators of some complete bipartite graphs

Shuyao Wang

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Joined
Mar 6, 2021
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For K1, 3, N, K1, 4, N, K1, 5, N, K1, 6 and N, the formula of cross index is summarized and deduced. The cross index is a new topological variable established under the supporting tree of the graph.

Idea:
use mathematical induction to deduce the cross index of the graph ε In addition to the minimum number of supports in the tree, the number of supports in the tree is determined. At present, the difficulty is how to determine the minimum cross index of support tree
 
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