• Thumbnail for Strongly regular graph
    In graph theory, a strongly regular graph (SRG) is a regular graph G = (V, E) with v vertices and degree k such that for some given integers λ , μ ≥ 0...
    20 KB (3,355 words) - 16:56, 17 June 2024
  • graphs that are regular but not strongly regular are the cycle graph and the circulant graph on 6 vertices. The complete graph Km is strongly regular...
    6 KB (827 words) - 20:10, 22 May 2024
  • In the mathematical field of graph theory, a distance-regular graph is a regular graph such that for any two vertices v and w, the number of vertices...
    6 KB (966 words) - 01:51, 7 December 2023
  • Thumbnail for Petersen graph
    construction forms a regular map and shows that the Petersen graph has non-orientable genus 1. The Petersen graph is strongly regular (with signature srg(10...
    24 KB (2,926 words) - 19:05, 30 April 2024
  • Thumbnail for Cap set
    The Games graph is a strongly regular graph with 729 vertices. Every edge belongs to a unique triangle, so it is a locally linear graph, the largest...
    17 KB (2,206 words) - 05:18, 18 April 2024
  • Thumbnail for Graph (discrete mathematics)
    and distance-transitive graphs; strongly regular graphs and their generalizations distance-regular graphs. Two edges of a graph are called adjacent if...
    28 KB (3,692 words) - 00:50, 19 June 2024
  • Tutte's fragment Tutte graph Young–Fibonacci graph Wagner graph Wells graph Wiener–Araya graph Windmill graph The strongly regular graph on v vertices and...
    14 KB (1,251 words) - 14:50, 13 March 2024
  • see orientation. 2.  For the strong perfect graph theorem, see perfect. 3.  A strongly regular graph is a regular graph in which every two adjacent vertices...
    106 KB (15,667 words) - 12:01, 16 May 2024
  • In mathematics, strongly regular might refer to: Strongly regular graph Strongly regular ring, or "strongly von Neumann regular" ring This disambiguation...
    167 bytes (51 words) - 05:37, 30 December 2019
  • Thumbnail for Algebraic combinatorics
    A strongly regular graph is defined as follows. Let G = (V,E) be a regular graph with v vertices and degree k. G is said to be strongly regular if there...
    13 KB (1,286 words) - 17:04, 6 July 2024
  • Thumbnail for Algebraic graph theory
    distance-regular graphs, and strongly regular graphs), and on the inclusion relationships between these families. Certain of such categories of graphs are sparse...
    7 KB (671 words) - 16:56, 27 November 2023
  • Thumbnail for Higman–Sims graph
    mathematical graph theory, the Higman–Sims graph is a 22-regular undirected graph with 100 vertices and 1100 edges. It is the unique strongly regular graph srg(100...
    9 KB (993 words) - 15:07, 19 April 2024
  • Thumbnail for Paley graph
    fact follows from the fact that the graph is arc-transitive and self-complementary. The strongly regular graphs with parameters of this form (for an...
    14 KB (1,745 words) - 02:03, 5 July 2024
  • Thumbnail for Conway's 99-graph problem
    there exist a strongly regular graph with parameters (99,14,1,2)? (more unsolved problems in mathematics) In graph theory, Conway's 99-graph problem is an...
    7 KB (709 words) - 07:47, 8 May 2024
  • Split graph String graph Strongly regular graph Threshold graph Total graph Tree (graph theory). Trellis (graph) Turán graph Ultrahomogeneous graph Vertex-transitive...
    7 KB (664 words) - 12:10, 30 October 2023
  • Thumbnail for Rook's graph
    by stating that an n × n {\displaystyle n\times n} rook's graph is a strongly regular graph with parameters srg ⁡ ( n 2 , 2 n − 2 , n − 2 , 2 ) {\displaystyle...
    32 KB (3,788 words) - 18:25, 5 July 2024
  • Thumbnail for Brouwer–Haemers graph
    field of graph theory, the Brouwer–Haemers graph is a 20-regular undirected graph with 81 vertices and 810 edges. It is a strongly regular graph, a distance-transitive...
    6 KB (714 words) - 00:30, 19 August 2023
  • Thumbnail for Hall–Janko graph
    undirected graph with 100 vertices and 1800 edges. It is a rank 3 strongly regular graph with parameters (100,36,14,12) and a maximum coclique of size 10...
    3 KB (343 words) - 19:28, 28 July 2018
  • the spectral graph theory has expanded to vertex-varying graphs often encountered in many real-life applications. Strongly regular graph Algebraic connectivity...
    15 KB (1,825 words) - 10:14, 23 April 2024
  • Thumbnail for Cameron graph
    The Cameron graph is a strongly regular graph of parameters ( 231 , 30 , 9 , 3 ) {\displaystyle (231,30,9,3)} . This means that it has 231 vertices, 30...
    2 KB (200 words) - 23:46, 6 May 2024
  • 2O(√n log2 n) was obtained first for strongly regular graphs by László Babai (1980), and then extended to general graphs by Babai & Luks (1983). Improvement...
    39 KB (4,082 words) - 06:01, 18 June 2024
  • of graph theory, a conference graph is a strongly regular graph with parameters v, k = (v − 1)/2, λ = (v − 5)/4, and μ = (v − 1)/4. It is the graph associated...
    1 KB (195 words) - 05:19, 22 April 2024
  • 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...
    43 KB (5,299 words) - 10:28, 5 July 2024
  • Thumbnail for Chang graphs
    field of graph theory, the Chang graphs are three 12-regular undirected graphs, each with 28 vertices and 168 edges. They are strongly regular, with the...
    2 KB (244 words) - 02:19, 25 November 2023
  • Thumbnail for Turán graph
    consider Turán graphs to be a trivial case of strong regularity and therefore exclude them from the definition of a strongly regular graph. The class of...
    10 KB (1,262 words) - 01:20, 11 July 2024
  • The Suzuki graph is a strongly regular graph with parameters ( 1782 , 416 , 100 , 96 ) {\displaystyle (1782,416,100,96)} . Its automorphism group has...
    846 bytes (50 words) - 05:56, 24 July 2020
  • invented the notions of partial geometry, association scheme, and strongly regular graph and started a systematic study of difference sets to construct symmetric...
    9 KB (985 words) - 05:34, 2 July 2024
  • Thumbnail for Berlekamp–Van Lint–Seidel graph
    In graph theory, the Berlekamp–Van Lint–Seidel graph is a locally linear strongly regular graph with parameters ( 243 , 22 , 1 , 2 ) {\displaystyle (243...
    4 KB (454 words) - 03:47, 8 November 2023
  • regular two-graphs, strongly regular graphs, and also finite groups because many regular two-graphs have interesting automorphism groups. A two-graph...
    11 KB (1,591 words) - 02:33, 29 December 2023
  • is a strongly regular graph with certain kinds of parameter values. John H. Smith (June 2–14, 1969). "Some properties of the spectrum of a graph". In...
    3 KB (305 words) - 07:39, 24 May 2024