• theory of matroids, a matroid representation is a family of vectors whose linear independence relation is the same as that of a given matroid. Matroid representations...
    14 KB (1,784 words) - 00:33, 9 November 2024
  • In combinatorics, a matroid /ˈmeɪtrɔɪd/ is a structure that abstracts and generalizes the notion of linear independence in vector spaces. There are many...
    60 KB (8,774 words) - 11:35, 31 March 2025
  • Thumbnail for Oriented matroid
    An oriented matroid is a mathematical structure that abstracts the properties of directed graphs, vector arrangements over ordered fields, and hyperplane...
    31 KB (3,970 words) - 08:05, 17 June 2024
  • fixed-parameter tractable for linear matroids when parameterized both by the matroid rank and the field size of a linear representation. The "girth" terminology generalizes...
    6 KB (779 words) - 03:14, 9 November 2024
  • Thumbnail for Graphic matroid
    In the mathematical theory of matroids, a graphic matroid (also called a cycle matroid or polygon matroid) is a matroid whose independent sets are the...
    16 KB (2,283 words) - 19:11, 1 April 2025
  • In mathematics, a regular matroid is a matroid that can be represented over all fields. A matroid is defined to be a family of subsets of a finite set...
    7 KB (851 words) - 07:14, 30 January 2023
  • Thumbnail for Partition matroid
    In mathematics, a partition matroid or partitional matroid is a matroid that is a direct sum of uniform matroids. It is defined over a base set in which...
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  • of matroids, a minor of a matroid M is another matroid N that is obtained from M by a sequence of restriction and contraction operations. Matroid minors...
    16 KB (1,995 words) - 04:03, 25 September 2024
  • In mathematics, an algebraic matroid is a matroid, a combinatorial structure, that expresses an abstraction of the relation of algebraic independence....
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  • mathematics and computer science, a matroid oracle is a subroutine through which an algorithm may access a matroid, an abstract combinatorial structure...
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  • Thumbnail for Vámos matroid
    In mathematics, the Vámos matroid or Vámos cube is a matroid over a set of eight elements that cannot be represented as a matrix over any field. It is...
    8 KB (1,009 words) - 00:12, 9 November 2024
  • Algebraic independence (category Matroid theory)
    linearly independent. Every matroid with a linear representation of this type may also be represented as an algebraic matroid, by choosing an indeterminate...
    7 KB (946 words) - 17:06, 18 January 2025
  • Matroid, Inc. is a computer vision company that offers a platform for creating computer vision models, called detectors, to search visual media for objects...
    13 KB (1,153 words) - 01:47, 28 September 2023
  • Thumbnail for Algebraic combinatorics
    or involve matroids, polytopes, partially ordered sets, or finite geometries. On the algebraic side, besides group theory and representation theory, lattice...
    13 KB (1,289 words) - 14:02, 16 October 2024
  • nature or involve matroids, polytopes, partially ordered sets, or finite geometries. On the algebraic side, besides group and representation theory, lattice...
    33 KB (3,524 words) - 20:02, 6 May 2025
  • Thumbnail for Dimension (vector space)
    |V|=\max(|F|,\dim V).} A vector space can be seen as a particular case of a matroid, and in the latter there is a well-defined notion of dimension. The length...
    9 KB (1,485 words) - 09:34, 2 November 2024
  • Rota's conjecture (category Matroid theory)
    matroid M {\displaystyle M} ; S {\displaystyle S} is said to be a representation of any matroid isomorphic to M {\displaystyle M} . Not every matroid...
    10 KB (1,208 words) - 06:35, 9 November 2024
  • Thumbnail for Bicircular matroid
    In the mathematical subject of matroid theory, the bicircular matroid of a graph G is the matroid B(G) whose points are the edges of G and whose independent...
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  • accomplishments, including foundation work in the fields of graph theory and matroid theory. Tutte's research in the field of graph theory proved to be of remarkable...
    42 KB (4,696 words) - 05:52, 6 April 2025
  • Thumbnail for Implicit graph
    group, an implicit model for group-theoretic algorithms Matroid oracle, an implicit model for matroid algorithms Korf, Richard E. (2008), "Linear-time disk-based...
    23 KB (2,839 words) - 17:41, 20 March 2025
  • Thumbnail for Fano plane
    Fano plane (category Matroid theory)
    structure theory of matroids. Excluding the Fano plane as a matroid minor is necessary to characterize several important classes of matroids, such as regular...
    24 KB (3,102 words) - 07:38, 12 April 2025
  • Thumbnail for Convex polytope
    polytope may have a bit-length which is not polynomial in this representation. Oriented matroid Nef polyhedron Steinitz's theorem for convex polyhedra Branko...
    23 KB (3,271 words) - 20:14, 22 April 2025
  • a set of points and lines without any two-point lines. Sylvester matroid, a matroid without any two-point lines. Sylvester's determinant identity. Sylvester's...
    5 KB (517 words) - 00:34, 3 January 2025
  • Thumbnail for Jack Edmonds
    he proved the matroid intersection theorem, a very general combinatorial min-max theorem which, in modern terms, showed that the matroid intersection problem...
    16 KB (1,543 words) - 09:32, 10 September 2024
  • Thumbnail for Black box group
    equipped with a further oracle for determining element orders. Implicit graph Matroid oracle Babai, L.; Szemeredi, E. (1984). "On the Complexity of Matrix Group...
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  • oriented matroids; in particular, the Folkman–Lawrence topological representation theorem is "one of the cornerstones of the theory of oriented matroids". In...
    13 KB (1,140 words) - 06:46, 31 December 2024
  • matroid theory, the family of sets complementary to the independent sets of a given matroid themselves form another matroid, called the dual matroid....
    53 KB (6,694 words) - 15:44, 28 January 2025
  • of disjoint cycles. Cycle basis Cycle double cover conjecture Eulerian matroid Sabidussi 1964. Euler, L. (1736), "Solutio problematis ad geometriam situs...
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  • {\displaystyle (0,1,2)} . Filtration (mathematics) Flag manifold Grassmannian Matroid Kostrikin, Alexei I. and Manin, Yuri I. (1997). Linear Algebra and Geometry...
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  • (graph theory), a symmetric tessellation of a closed surface Regular matroid, a matroid which can be represented over any field Regular paperfolding sequence...
    7 KB (985 words) - 17:34, 4 December 2024