- Chang graphs
-
Chang graphs
On the left the originating triangular graphs T8: the vertices in the switching set are green, the deleted edges are red and new added ones are phantom blue.
On the right the three Chang graphs; these graphs are generated by selecting a proper switching set of vertices.Vertices 28 Edges 168 Properties Strongly regular v · mathematical field of graph theory, the Chang graphs are a set of three 18-regular undirected graphs, each with 28 vertices and 168 edges. External links
- Weisstein, Eric W. "Chang Graphs." From MathWorld--A Wolfram Web Resource. http://mathworld.wolfram.com/ChangGraphs.html
- Andries E. Brouwer's pag on Chang graphs
- Nadia Hamoud, "The Chang graphs"
Categories:- Individual graphs
- Regular graphs
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Premier graphe de Chang — Nombre de sommets 28 Nombre d arêtes 168 Distribution des degrés 12 régulier Rayon 2 Diamètre 2 Maille 3 Automorphismes 360 … Wikipédia en Français
Second graphe de Chang — Nombre de sommets 28 Nombre d arêtes 168 Distribution des degrés 12 régulier Rayon 2 Diamètre 2 Maille 3 Automorphismes 384 … Wikipédia en Français
Troisième graphe de Chang — Nombre de sommets 28 Nombre d arêtes 168 Distribution des degrés 12 régulier Rayon 2 Diamètre 2 Maille 3 Automorphismes 96 … Wikipédia en Français
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Chang graphs
- Chang graphs
-
Chang graphs
On the left the originating triangular graphs T8: the vertices in the switching set are green, the deleted edges are red and new added ones are phantom blue.
On the right the three Chang graphs; these graphs are generated by selecting a proper switching set of vertices.Vertices 28 Edges 168 Properties Strongly regular