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» Edge Growth in Graph Cubes
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CORR
2010
Springer
59views Education» more  CORR 2010»
13 years 5 months ago
Edge Growth in Graph Cubes
We show that for every connected graph G of diameter 3, the graph G3 has average degree 7 4 (G). We also provide an example showing that this bound is best possible. This resolv...
Matt DeVos, Stéphan Thomassé
ARSCOM
1998
79views more  ARSCOM 1998»
13 years 5 months ago
A characterization of halved cubes
The vertex set of a halved cube Qd consists of a bipartition vertex set of a cube Qd and two vertices are adjacent if they have a common neighbour in the cube. Let d ≥ 5. Then i...
Wilfried Imrich, Sandi Klavzar, Aleksander Vesel
DAM
1999
99views more  DAM 1999»
13 years 5 months ago
Recognizing Graphs of Acyclic Cubical Complexes
Acyclic cubical complexes have first been introduced by Bandelt and Chepoi in analogy to acyclic simplicial complexes. They characterized them by cube contraction and elimination ...
Wilfried Imrich, Sandi Klavzar
EJC
1998
13 years 5 months ago
A Convexity Lemma and Expansion Procedures for Bipartite Graphs
A hierarchy of classes of graphs is proposed which includes hypercubes, acyclic cubical complexes, median graphs, almost median graphs, premedian graphs and partial cubes. Structu...
Wilfried Imrich, Sandi Klavzar
IPL
2007
87views more  IPL 2007»
13 years 5 months ago
The forwarding indices of augmented cubes
For a given connected graph G of order n, a routing R in G is a set of n(n − 1) elementary paths specified for every ordered pair of vertices in G. The vertex (resp. edge) forw...
Min Xu, Jun-Ming Xu