• Thumbnail for Radon's theorem
    In geometry, Radon's theorem on convex sets, published by Johann Radon in 1921, states that: Any set of d + 2 points in Rd can be partitioned into two...
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  • In mathematics, the Radon–Nikodym theorem is a result in measure theory that expresses the relationship between two measures defined on the same measurable...
    23 KB (3,596 words) - 08:59, 4 June 2024
  • Thumbnail for Helly's theorem
    nonempty intersection. We prove the finite version, using Radon's theorem as in the proof by Radon (1921). The infinite version then follows by the finite...
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  • Thumbnail for Johann Radon
    reconstruction); Radon's theorem, that d + 2 points in d dimensions may always be partitioned into two subsets with intersecting convex hulls; the Radon–Hurwitz...
    6 KB (568 words) - 01:26, 21 October 2024
  • Thumbnail for Tverberg's theorem
    from this theorem is known as a Tverberg partition. The special case r = 2 was proved earlier by Radon, and it is known as Radon's theorem. The case d = 1...
    7 KB (945 words) - 08:51, 8 September 2024
  • analysis) Rado's theorem (harmonic analysis) Radon's theorem (convex sets) Radon–Nikodym theorem (measure theory) Raikov's theorem (probability) Ramanujam...
    73 KB (6,038 words) - 09:58, 20 November 2024
  • Helly's theorem Kirchberger's theorem N-dimensional polyhedron Radon's theorem, and its generalization Tverberg's theorem Krein–Milman theorem Choquet...
    14 KB (2,153 words) - 21:04, 8 July 2024
  • theorem, Carathéodory's theorem, and Radon's theorem all postdate Kirchberger's theorem. A strengthened version of Kirchberger's theorem fixes one of the given...
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  • classical problem of differential topology, beginning with the hairy ball theorem, and early work on the classification of division algebras. Specifically...
    5 KB (646 words) - 11:04, 13 July 2023
  • Thumbnail for Convex set
    Holomorphically convex hull Integrally-convex set John ellipsoid Pseudoconvexity Radon's theorem Shapley–Folkman lemma Symmetric set Morris, Carla C.; Stark, Robert...
    25 KB (3,068 words) - 21:18, 3 October 2024
  • tool for understanding the behaviour of polynomials over local fields Radon's theorem - on convex sets, that any set of d + 2 points in Rd can be partitioned...
    8 KB (1,173 words) - 23:55, 16 April 2024
  • Bayes' theorem (alternatively Bayes' law or Bayes' rule, after Thomas Bayes) gives a mathematical rule for inverting conditional probabilities, allowing...
    52 KB (7,641 words) - 06:59, 25 November 2024
  • Thumbnail for Convex hull
    Russo–Dye theorem describes the convex hulls of unitary elements in a C*-algebra. In discrete geometry, both Radon's theorem and Tverberg's theorem concern...
    61 KB (7,161 words) - 05:35, 2 November 2024
  • Thumbnail for Radon transform
    the Radon transform. Cauchy–Crofton theorem is a closely related formula for computing the length of curves in space. Fast Fourier transform Radon 1917...
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  • 1 , n , n ) {\displaystyle \;(1,n,n)\;} is admissible. The Hurwitz–Radon theorem states that ( ρ ( n ) , n , n ) {\displaystyle \;\left(\rho (n),n,n\right)\;}...
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  • Thumbnail for Krein–Milman theorem
    analysis and convex analysis Helly's theorem – Theorem about the intersections of d-dimensional convex sets Radon's theorem – Says d+2 points in d dimensions...
    20 KB (2,953 words) - 00:34, 14 October 2024
  • representation theorem, each positive linear form on K(X) arises as integration with respect to a unique regular Borel measure. A real-valued Radon measure is...
    19 KB (2,697 words) - 00:45, 4 November 2024
  • generalization of Choi's theorem is known as Belavkin's "Radon–Nikodym" theorem for completely positive maps. Choi's theorem. Let Φ : C n × n → C m ×...
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  • measures or regular Borel measures or Radon measures or signed measures or complex measures. The statement of the theorem for positive linear functionals on...
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  • can be shattered). However, no set of 4 points can be shattered: by Radon's theorem, any four points can be partitioned into two subsets with intersecting...
    18 KB (2,801 words) - 14:27, 3 November 2024
  • Mathematical Society. doi:10.1090/surv/015. (See Theorem II.2.6) Bárcenas, Diómedes (2003). "The Radon–Nikodym Theorem for Reflexive Banach Spaces" (PDF). Divulgaciones...
    11 KB (1,728 words) - 12:21, 17 October 2024
  • Thumbnail for Projection-slice theorem
    In mathematics, the projection-slice theorem, central slice theorem or Fourier slice theorem in two dimensions states that the results of the following...
    9 KB (1,224 words) - 03:14, 25 July 2023
  • Thumbnail for Girsanov theorem
    theory, Girsanov's theorem or the Cameron-Martin-Girsanov theorem tells how stochastic processes change under changes in measure. The theorem is especially...
    8 KB (1,566 words) - 23:00, 3 November 2024
  • Kampen–Flores theorem on embeddability of skeletons of simplices into lower-dimensional Euclidean spaces, and topological and multicolored variants of Radon's theorem...
    5 KB (530 words) - 22:33, 8 May 2023
  • In mathematics, Bochner's theorem (named for Salomon Bochner) characterizes the Fourier transform of a positive finite Borel measure on the real line...
    9 KB (1,406 words) - 05:34, 29 September 2024
  • In mathematics, Stinespring's dilation theorem, also called Stinespring's factorization theorem, named after W. Forrest Stinespring, is a result from operator...
    12 KB (2,113 words) - 06:14, 30 June 2023
  • extension theorem (also known as Kolmogorov existence theorem, the Kolmogorov consistency theorem or the Daniell-Kolmogorov theorem) is a theorem that guarantees...
    10 KB (1,824 words) - 11:36, 19 September 2023
  • Wiener–Khinchin theorem or Wiener–Khintchine theorem, also known as the Wiener–Khinchin–Einstein theorem or the Khinchin–Kolmogorov theorem, states that...
    13 KB (1,811 words) - 15:30, 9 April 2024
  • Thumbnail for Oriented matroid
    Many results—Carathéodory's theorem, Helly's theorem, Radon's theorem, the Hahn–Banach theorem, the Krein–Milman theorem, the lemma of Farkas—can be formulated...
    31 KB (3,970 words) - 08:05, 17 June 2024
  • special case of the Radon–Nikodym theorem, see Nielsen 1997, Theorem 15.4 on page 251 or Athreya & Lahiri 2006, Item (ii) of Theorem 4.1.1 on page 115 (still...
    19 KB (2,686 words) - 00:14, 27 September 2024