A Simple Graph Is Regular If Every Vertex Has the Same

question 86

Short Answer

A simple graph is regular if every vertex has the same degree.
(a) For which positive integers n are the following graphs regular: $C _ { n } , W _ { n } , K _ { n } , Q _ { n } ?$
(b) For which positive integers m and n is $K _ { m , n }$ regular?

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