symmetric graph
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Symmetric graph — In graph theory a graph is symmetric or arc transitive if it is both vertex transitive and edge transitive. Trivalent symmetric graphs are compiled in the renowned Foster census … Wikipedia
Skew-symmetric graph — In graph theory, a branch of mathematics, a skew symmetric graph is a directed graph that is isomorphic to its own transpose graph, the graph formed by reversing all of its edges. The isomorphism is required to be an involution without any fixed… … Wikipedia
Semi-symmetric graph — In mathematics, a semi symmetric graph is an undirected graph that is edge transitive and regular, but not vertex transitive.In other words, a graph is semi symmetric if each vertex has the same number of incident edges, and there is a symmetry… … Wikipedia
Graph automorphism — In graph theoretical mathematics, an automorphism of a graph is a form of symmetry in which the graph is mapped onto itself while preserving the edge vertex connectivity.Formally, an automorphism of a graph G = ( V , E ) is a permutation sigma;… … Wikipedia
Graph coloring — A proper vertex coloring of the Petersen graph with 3 colors, the minimum number possible. In graph theory, graph coloring is a special case of graph labeling; it is an assignment of labels traditionally called colors to elements of a graph… … Wikipedia
Graph (mathematics) — This article is about sets of vertices connected by edges. For graphs of mathematical functions, see Graph of a function. For statistical graphs, see Chart. Further information: Graph theory A drawing of a labeled graph on 6 vertices and 7 edges … Wikipedia
Symmetric group — Not to be confused with Symmetry group. A Cayley graph of the symmetric group S4 … Wikipedia
Symmetric Turing machine — Definition of symmetric Turing machines: SL was first defined in 1982 by Lewis and Papadimitriou, [Jesper Jansson. [http://www.df.lth.se/ jj/Publications/STCON2.ps Deterministic Space Bounded Graph Connectivity Algorithms] . Manuscript. 1998.]… … Wikipedia
Symmetric difference — Venn diagram of The symmetric difference is the union without the intersection … Wikipedia
Symmetric hypergraph theorem — The Symmetric hypergraph theorem is a theorem in combinatorics that puts an upper bound on the chromatic number of a graph (or hypergraph in general). The original reference for this paper is unknown at the moment, and has been called folklore [R … 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
