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
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
Cograph (redirect from Complement-reducible graph)
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
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
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
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
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
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
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
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...
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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...
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one vertex. Complete k-partite graphs, complete multipartite graphs, and their complement graphs, the cluster graphs, are special cases of cographs,...
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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
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
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
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
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...
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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
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
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
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
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
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
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