• Thumbnail for Complement graph
    In the mathematical field of graph theory, the complement or inverse of a graph G is a graph H on the same vertices such that two distinct vertices of...
    9 KB (1,125 words) - 22:13, 23 June 2023
  • Thumbnail for Perfect graph
    associated graphs. The perfect graph theorem states that the complement graph of a perfect graph is also perfect. The strong perfect graph theorem characterizes...
    59 KB (7,055 words) - 07:30, 25 February 2025
  • Thumbnail for Cograph
    In graph theory, a cograph, or complement-reducible graph, or P4-free graph, is a graph that can be generated from the single-vertex graph K1 by complementation...
    22 KB (2,689 words) - 18:27, 19 April 2025
  • Thumbnail for Perfect graph theorem
    In graph theory, the perfect graph theorem of László Lovász (1972a, 1972b) states that an undirected graph is perfect if and only if its complement graph...
    13 KB (1,512 words) - 20:27, 29 August 2024
  • Appendix:Glossary of graph theory in Wiktionary, the free dictionary. This is a glossary of graph theory. Graph theory is the study of graphs, systems of nodes...
    109 KB (16,011 words) - 18:32, 30 April 2025
  • Thumbnail for Independent set (graph theory)
    edge in the graph has at most one endpoint in S {\displaystyle S} . A set is independent if and only if it is a clique in the graph's complement. The size...
    30 KB (3,561 words) - 23:07, 16 October 2024
  • mathematical field of graph theory, the term "null graph" may refer either to the order-zero graph, or alternatively, to any edgeless graph (the latter is sometimes...
    5 KB (516 words) - 07:27, 6 March 2024
  • Thumbnail for Strongly regular graph
    μ common neighbours. Such a strongly regular graph is denoted by srg(v, k, λ, μ). Its complement graph is also strongly regular: it is an srg(v, v −...
    21 KB (3,468 words) - 21:22, 9 February 2025
  • Thumbnail for Graph homomorphism
    In the mathematical field of graph theory, a graph homomorphism is a mapping between two graphs that respects their structure. More concretely, it is a...
    38 KB (4,860 words) - 02:17, 6 September 2024
  • complement Two's complement Complement graph Self-complementary graph, a graph which is isomorphic to its complement Complemented lattice Complement of an angle...
    3 KB (328 words) - 00:28, 17 April 2025
  • Thumbnail for Clique (graph theory)
    graph or its complement graph contains a clique with at least a logarithmic number of vertices. According to a result of Moon & Moser (1965), a graph...
    20 KB (2,501 words) - 18:00, 21 February 2025
  • Thumbnail for Graph (discrete mathematics)
    as: edge contraction, line graph, dual graph, complement graph, graph rewriting; binary operations, which create a new graph from two initial ones, such...
    28 KB (3,671 words) - 04:38, 28 April 2025
  • Thumbnail for Complete graph
    disconnects the graph is the complete set of vertices. The complement graph of a complete graph is an empty graph. If the edges of a complete graph are each...
    14 KB (1,253 words) - 06:06, 6 March 2025
  • Thumbnail for Cluster graph
    graph if and only if it has no three-vertex induced path; for this reason, the cluster graphs are also called P3-free graphs. They are the complement...
    6 KB (647 words) - 06:47, 25 June 2023
  • one vertex. Complete k-partite graphs, complete multipartite graphs, and their complement graphs, the cluster graphs, are special cases of cographs,...
    4 KB (399 words) - 15:28, 17 January 2025
  • Thumbnail for Knowledge graph
    knowledge graph have been further organized using terms from the schema.org vocabulary. The Google Knowledge Graph became a successful complement to string-based...
    21 KB (2,342 words) - 00:05, 28 March 2025
  • graph from an initial one by a complex change, such as: transpose graph; complement graph; line graph; graph minor; graph rewriting; power of graph;...
    5 KB (512 words) - 23:48, 9 March 2025
  • In the mathematical discipline of graph theory, the line graph of an undirected graph G is another graph L(G) that represents the adjacencies between edges...
    44 KB (5,360 words) - 13:42, 2 February 2025
  • Thumbnail for Clique problem
    Clique problem (category Computational problems in graph theory)
    have been developed for many subclasses of perfect graphs. In the complement graphs of bipartite graphs, Kőnig's theorem allows the maximum clique problem...
    84 KB (9,905 words) - 17:15, 23 September 2024
  • Thumbnail for Bipartite graph
    graphs: every bipartite graph, the complement of every bipartite graph, the line graph of every bipartite graph, and the complement of the line graph...
    33 KB (4,093 words) - 00:09, 21 October 2024
  • Thumbnail for Dual graph
    mathematical discipline of graph theory, the dual graph of a planar graph G is a graph that has a vertex for each face of G. The dual graph has an edge for each...
    51 KB (6,607 words) - 00:16, 3 April 2025
  • Thumbnail for Wheel graph
    In graph theory, a wheel graph is a graph formed by connecting a single universal vertex to all vertices of a cycle. A wheel graph with n vertices can...
    5 KB (589 words) - 21:39, 30 October 2024
  • Thumbnail for Neighbourhood (graph theory)
    that is, for all vertices, the complement graph of the neighbourhood of the vertex does not contain a triangle. A graph that is locally H is claw-free...
    10 KB (1,122 words) - 08:52, 18 August 2023
  • bipartite graphs, line graphs of bipartite graphs, complementary graphs of bipartite graphs, complements of line graphs of bipartite graphs, and double...
    15 KB (1,769 words) - 23:06, 16 October 2024
  • Thumbnail for Turán graph
    overall graph is the complement of the disjoint union of the complements of these independent sets. Chao & Novacky (1982) show that the Turán graphs are chromatically...
    10 KB (1,262 words) - 13:42, 15 July 2024
  • Thumbnail for Interval graph
    complement is a comparability graph, it follows that graph and its complement are both interval graphs if and only if the graph is both a split graph...
    22 KB (2,640 words) - 01:39, 27 August 2024
  • Thumbnail for Self-complementary graph
    of graph theory, a self-complementary graph is a graph which is isomorphic to its complement. The simplest non-trivial self-complementary graphs are...
    4 KB (366 words) - 21:21, 13 December 2023
  • Thumbnail for Kőnig's theorem (graph theory)
    graphs are perfect, the complements of line graphs of bipartite graphs are also perfect. A clique in the complement of the line graph of G is just a matching...
    24 KB (3,433 words) - 02:46, 12 December 2024
  • Thumbnail for Cycle (graph theory)
    is the complement of a graph hole. Chordless cycles may be used to characterize perfect graphs: by the strong perfect graph theorem, a graph is perfect...
    15 KB (1,857 words) - 03:10, 25 February 2025
  • Thumbnail for Rado graph
    In the mathematical field of graph theory, the Rado graph, Erdős–Rényi graph, or random graph is a countably infinite graph that can be constructed (with...
    38 KB (5,168 words) - 03:42, 24 August 2024