Distance-biregular graphs with 2-valent vertices and distance-regular line graphs
نویسندگان
چکیده
منابع مشابه
Edge-distance-regular graphs are distance-regular
A graph is edge-distance-regular when it is distance-regular around each of its edges and it has the same intersection numbers for any edge taken as a root. In this paper we give some (combinatorial and algebraic) proofs of the fact that every edge-distance-regular graph Γ is distance-regular and homogeneous. More precisely, Γ is edge-distance-regular if and only if it is bipartite distance-reg...
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Edge-distance-regularity is a concept recently introduced by the authors which is similar to that of distance-regularity, but now the graph is seen from each of its edges instead of from its vertices. More precisely, a graph Γ with adjacency matrix A is edge-distance-regular when it is distance-regular around each of its edges and with the same intersection numbers for any edge taken as a root....
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ژورنال
عنوان ژورنال: Journal of Combinatorial Theory, Series B
سال: 1985
ISSN: 0095-8956
DOI: 10.1016/0095-8956(85)90065-6