Journal of Combinatorial Theory — Le Journal of Combinatorial Theory, Series A[1] et Series B[2] est une revue mathématique se spécialisant en analyse combinatoire et autres questions associées ; elle est publiée par Elsevier Science. Series A est principalement consacrée… … Wikipédia en Français
Journal of Combinatorial Theory — The Journal of Combinatorial Theory , Series A [ [http://www.elsevier.com/wps/find/journaldescription.cws home/622862/description Journal of Combinatorial Theory, Series A Elsevier ] ] and Series B [… … Wikipedia
Independent set (graph theory) — The nine blue vertices form a maximum independent set for the Generalized Petersen graph GP(12,4). In graph theory, an independent set or stable set is a set of vertices in a graph, no two of which are adjacent. That is, it is a set I of vertices … Wikipedia
Graph theory — In mathematics and computer science, graph theory is the study of graphs : mathematical structures used to model pairwise relations between objects from a certain collection. A graph in this context refers to a collection of vertices or nodes and … Wikipedia
Glossary of graph theory — Graph theory is a growing area in mathematical research, and has a large specialized vocabulary. Some authors use the same word with different meanings. Some authors use different words to mean the same thing. This page attempts to keep up with… … Wikipedia
Star (graph theory) — Star The star S7. (Some authors index this as S8.) Vertices k+1 Edges k … Wikipedia
Degree (graph theory) — A graph with vertices labeled by degree In graph theory, the degree (or valency) of a vertex of a graph is the number of edges incident to the vertex, with loops counted twice.[1] The degree of a vertex … Wikipedia
Hadwiger conjecture (graph theory) — In graph theory, the Hadwiger conjecture (or Hadwiger s conjecture) states that, if an undirected graph G requires k or more colors in any vertex coloring, then one can find k disjoint connected subgraphs of G such that each subgraph is connected … Wikipedia
Crossing number (graph theory) — A drawing of the Heawood graph with three crossings. This is the minimum number of crossings among all drawings of this graph, so the graph has crossing number cr(G) = 3. In graph theory, the crossing number cr(G) of a graph G is the… … Wikipedia
Intersection number (graph theory) — In the mathematical field of graph theory, the intersection number of a graph is the smallest number of elements in a representation of G as an intersection graph of finite sets. Equivalently, it is the smallest number of cliques needed to cover… … Wikipedia
