• Thumbnail for Cactus graph
    In graph theory, a cactus (sometimes called a cactus tree) is a connected graph in which any two simple cycles have at most one vertex in common. Equivalently...
    13 KB (1,684 words) - 20:51, 27 February 2025
  • Thumbnail for Block graph
    Block graphs are sometimes erroneously called Husimi trees (after Kôdi Husimi), but that name more properly refers to cactus graphs, graphs in which...
    8 KB (985 words) - 08:35, 13 January 2025
  • Thumbnail for Diamond graph
    in the graph shares at most one vertex. The family of graphs in which each connected component is a cactus graph is downwardly closed under graph minor...
    3 KB (352 words) - 07:00, 26 June 2022
  • Thumbnail for Unit distance graph
    distance graphs include the cactus graphs, the matchstick graphs and penny graphs, and the hypercube graphs. The generalized Petersen graphs are non-strict...
    33 KB (4,019 words) - 07:16, 22 November 2024
  • Thumbnail for Pan-genome graph construction
    graphs. The Cactus graph is a graph-based structure specifically designed for whole-genome multiple alignments with complex rearrangements. A cactus graph...
    39 KB (4,404 words) - 14:21, 16 March 2025
  • Thumbnail for Friendship graph
    graph F2 is isomorphic to the butterfly graph. Friendship graphs are generalized by the triangular cactus graphs. The friendship theorem of Paul Erdős,...
    8 KB (849 words) - 05:58, 13 April 2025
  • Thumbnail for Locally linear graph
    Examples of locally linear graphs include the triangular cactus graphs, the line graphs of 3-regular triangle-free graphs, and the Cartesian products...
    24 KB (3,383 words) - 07:26, 24 March 2025
  • Thumbnail for Outerplanar graph
    In graph theory, an outerplanar graph is a graph that has a planar drawing for which all vertices belong to the outer face of the drawing. Outerplanar...
    19 KB (2,089 words) - 08:10, 14 January 2025
  • 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 Cycle (graph theory)
    These include: Bipartite graph, a graph without odd cycles (cycles with an odd number of vertices) Cactus graph, a graph in which every nontrivial biconnected...
    15 KB (1,857 words) - 03:10, 25 February 2025
  • Cactus, alternative name of the Mammillaria cactus genera Cactus (crustacean), the crustacean genus Cactus graph or cactus, a type of connected graph...
    4 KB (510 words) - 22:31, 9 December 2024
  • Thumbnail for Forbidden graph characterization
    In graph theory, a branch of mathematics, many important families of graphs can be described by a finite set of individual graphs that do not belong to...
    17 KB (1,224 words) - 20:13, 16 April 2025
  • algorithms exist for cographs, chain graphs, and cactus block graphs (a class including both cactus graphs and block graphs). The problem may be solved in polynomial...
    20 KB (2,520 words) - 16:13, 28 November 2024
  • a cycle graph is geodetic when it has odd length, every cactus graph in which the cycles have odd length is also geodetic. These cactus graphs are exactly...
    8 KB (1,010 words) - 07:15, 1 December 2023
  • Thumbnail for Pseudoforest
    Pseudoforest (redirect from Unicyclic graph)
    butterfly, the resulting larger graph family consists of the cactus graphs and disjoint unions of multiple cactus graphs. More simply, if multigraphs with...
    30 KB (4,054 words) - 00:15, 9 November 2024
  • of graphs, including series–parallel graphs and their subgraphs, which include outerplanar graphs, as well as for a line graph of a tree or a cactus graph...
    4 KB (449 words) - 02:24, 20 January 2025
  • Thumbnail for Matroid parity problem
    components as the original graph. Cactus graphs are automatically planar graphs, and the problem of finding triangular cactus graphs forms the basis for the...
    24 KB (3,443 words) - 01:40, 23 December 2024
  • path graphs), pseudoforests, and cactus graphs; planar graphs, outerplanar graphs, apex graphs (formed by adding a single vertex to a planar graph), toroidal...
    21 KB (2,900 words) - 23:37, 6 May 2025
  • Thumbnail for Kôdi Husimi
    Kôdi Husimi (category Graph theorists)
    mathematical area of graph theory, the name "Husimi tree" has come to refer to two different kinds of graphs: cactus graphs (the graphs in which each edge...
    7 KB (795 words) - 22:33, 27 October 2024
  • Thumbnail for Greedy coloring
    Greedy coloring (category Graph coloring)
    bipartite graphs, all cactus graphs, all wheel graphs, all graphs on at most six vertices, and almost every k {\displaystyle k} -colorable graph. Although...
    32 KB (3,887 words) - 07:06, 3 December 2024
  • Treewidth (category Graph invariants)
    k, the graphs of treewidth at most k are called the partial k-trees. Other families of graphs with bounded treewidth include the cactus graphs, pseudoforests...
    42 KB (4,569 words) - 23:52, 13 March 2025
  • Partial k-tree (category Graph families)
    Families of graphs with this property include the cactus graphs, pseudoforests, series–parallel graphs, outerplanar graphs, Halin graphs, and Apollonian...
    4 KB (498 words) - 07:22, 31 July 2024
  • Thumbnail for Cycle double cover
    Cycle double cover (category Graph theory objects)
    conjecture is called a cycle double cover. Some graphs such as cycle graphs and bridgeless cactus graphs can only be covered by using the same cycle more...
    13 KB (1,746 words) - 14:30, 18 December 2024
  • other; in this case, it may be represented as the graphic matroid of a cactus graph. If M {\displaystyle M} is a binary matroid, then so is its dual, and...
    7 KB (825 words) - 00:12, 9 November 2024
  • Thumbnail for Graph coloring game
    forests with maximum degree 3. Cactuses: χ g ( C ) = 5 {\displaystyle \chi _{g}({\mathcal {C}})=5} . Outerplanar graphs: 6 ≤ χ g ( O ) ≤ 7 {\displaystyle...
    31 KB (4,118 words) - 01:09, 28 February 2025
  • Greedy embedding (category Geometric graph theory)
    exploiting the properties of cactus graphs, Leighton & Moitra (2010) proved the conjecture; the greedy embeddings of these graphs can be defined succinctly...
    13 KB (1,449 words) - 04:13, 6 January 2025
  • problem global optimum gnome sort goobi graph graph coloring graph concentration graph drawing graph isomorphism graph partition Gray code greatest common...
    35 KB (3,135 words) - 18:46, 6 May 2025
  • to: Domesticated hedgehog Hedgehog (band), a Beijing rock band Hedgehog cactus (disambiguation), a common name for Pediocactus, Echinocereus, or Echinopsis...
    1 KB (220 words) - 10:22, 7 October 2021
  • Thumbnail for List of WWE pay-per-view and livestreaming supercards
    List of WWE pay-per-view and livestreaming supercards (category Pages using the Graph extension)
    Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found...
    198 KB (2,987 words) - 17:16, 15 May 2025
  • numerical grids used for graph plotting or computational simulation, and would be better suited if specific areas of graphs which needed precision could...
    9 KB (1,108 words) - 09:57, 15 April 2025