• In mathematics, an integral polytope has an associated Ehrhart polynomial that encodes the relationship between the volume of a polytope and the number...
    16 KB (2,245 words) - 23:41, 10 May 2025
  • easily be computed from the leading coefficient of the Ehrhart polynomial. The Ehrhart polynomial associated with the Birkhoff polytope is only known for...
    8 KB (1,007 words) - 21:02, 14 April 2025
  • chromatic polynomial and Ehrhart polynomial (see below), all special cases of Stanley's general Reciprocity Theorem. The chromatic polynomial P ( G , n...
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  • Thumbnail for Reeve tetrahedra
    the Ehrhart polynomial of Tr is negative. This example shows that Ehrhart polynomials can sometimes have negative coefficients. Ehrhart polynomials satisfy...
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  • applying a randomized polynomial-time approximation scheme for polytope volume. The Ehrhart polynomial of the order polytope is a polynomial whose values at...
    9 KB (1,416 words) - 15:09, 16 April 2025
  • Thumbnail for Square pyramidal number
    polyhedra are formalized by the Ehrhart polynomials. These differ from figurate numbers in that, for Ehrhart polynomials, the points are always arranged...
    19 KB (2,323 words) - 21:37, 22 June 2025
  • Thumbnail for Pick's theorem
    a polytope", pp. 76–77 Diaz, Ricardo; Robins, Sinai (1997). "The Ehrhart polynomial of a lattice polytope". Annals of Mathematics. Second Series. 145...
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  • Eugène Ehrhart (29 April 1906 – 17 January 2000) was a French mathematician who in the 1960s introduced Ehrhart polynomials, which count the lattice points...
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  • Ehrhart polynomial Exponential polynomials Favard's theorem Fibonacci polynomials Gegenbauer polynomials Hahn polynomials Hall–Littlewood polynomials...
    5 KB (441 words) - 01:35, 1 December 2023
  • reciprocity theorem generalizes Ehrhart-Macdonald reciprocity for Ehrhart polynomials of rational convex polytopes. Ehrhart polynomial Stanley, Richard P. (1974)...
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  • Thumbnail for Figurate number
    research mathematics, figurate numbers are studied by way of the Ehrhart polynomials, polynomials that count the number of integer points in a polygon or polyhedron...
    11 KB (1,215 words) - 05:31, 1 May 2025
  • \mathbb {N} } . This is known as the Ehrhart quasi-polynomial, named after Eugène Ehrhart. Given two quasi-polynomials F {\displaystyle F} and G {\displaystyle...
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  • Ehrhart is a surname. Notable people with the surname include: Eugène Ehrhart (1906–2000), French mathematician who introduced Ehrhart polynomials in the...
    685 bytes (109 words) - 15:50, 6 January 2023
  • Tyrrell B.; Woods, Kevin M. (2005), "The minimum period of the Ehrhart quasi-polynomial of a rational polytope", Journal of Combinatorial Theory, Series...
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  • Thumbnail for Lattice (group)
    lattice is described by the polytope's Ehrhart polynomial. Formulas for some of the coefficients of this polynomial involve d( Λ {\displaystyle \Lambda }...
    17 KB (2,289 words) - 08:20, 26 June 2025
  • 1112/s0010437x06002193. S2CID 6955564. Mustaţă, Mircea; Payne, Sam (2005). "Ehrhart polynomials and stringy Betti numbers". Mathematische Annalen. 333 (4): 787–795...
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  • Coxeter group Euclidean distance Homothetic center Hyperplane Lattice Ehrhart polynomial Leech lattice Minkowski's theorem Packing Sphere packing Kepler conjecture...
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  • Thumbnail for Discrete geometry
    in discrete geometry: Polyhedral combinatorics Lattice polytopes Ehrhart polynomials Pick's theorem Hirsch conjecture Opaque set Packings, coverings,...
    15 KB (1,575 words) - 05:36, 16 October 2024
  • Thumbnail for Polyhedron
    coordinates are called lattice polyhedra or integral polyhedra. The Ehrhart polynomial of lattice a polyhedron counts how many points with integer coordinates...
    96 KB (10,656 words) - 22:12, 1 July 2025
  • Thumbnail for Integral polytope
    polytope, including its volume and number of vertices, is encoded by its Ehrhart polynomial. Integral polytopes are prominently featured in the theory of toric...
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  • closely related to the h*-vector for a convex lattice polytope, see Ehrhart polynomial. The h {\displaystyle \textstyle h} -vector ( h 0 , h 1 , … , h d...
    14 KB (2,250 words) - 22:10, 25 May 2024
  • Dehn–Sommerville equations relating numbers of faces; Pick's theorem and the Ehrhart polynomials, both of which relate lattice counting to volume; generating functions...
    4 KB (384 words) - 02:18, 17 September 2024
  • Thumbnail for Integer points in convex polyhedra
    lattice is described by the polytope's Ehrhart polynomial. Formulas for some of the coefficients of this polynomial involve d(Λ) as well. In certain approaches...
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  • Thumbnail for Polymake
    description) to combinatorial or algebraic properties (e.g., H-vector, Ehrhart polynomial, Hilbert basis, and Schlegel diagrams). There are also many visualization...
    14 KB (1,306 words) - 19:19, 20 August 2024
  • {\displaystyle d} . Convex cone Algebraic geometry Number theory Ring theory Ehrhart polynomial Rational cone Toric variety Stanley, Richard P. (1986). "Two poset...
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  • into orthoschemes – is it possible for simplices of every dimension? Ehrhart's volume conjecture: a convex body K {\displaystyle K} in n {\displaystyle...
    195 KB (20,069 words) - 08:05, 26 June 2025
  • _{n})={\frac {(n+1)^{n}}{n!}}\sim {\frac {e^{n+1}}{\sqrt {2\pi n}}}.} Ehrhart's volume conjecture is that this is the (optimal) upper bound on the volume...
    148 KB (17,240 words) - 12:56, 27 June 2025