Results on -continuous graphs
For any nontrivial connected graph and any graph , the of a vertex in is the number of copies of in containing . is called if and only if the -degrees of any two adjacent vertices in differ by at most 1; is if the -degrees of all vertices in are the same. This paper classifies all -continuous graphs with girth greater than 3. We show that for any nontrivial connected graph other than the star , , there exists a regular graph that is not -continuous. If is 2-connected,...