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  • by introducing coordinates on the resulting space. In this context, the term "modulus" is used synonymously with "parameter"; moduli spaces were first...
    28 KB (4,050 words) - 22:20, 30 April 2025
  • Thumbnail for Differential geometry of surfaces
    "geodesic convexity" and the coordinates are called normal coordinates. The explicit calculation of normal coordinates can be accomplished by considering...
    129 KB (17,641 words) - 15:58, 25 May 2025
  • Teichmüller space (category Moduli theory)
    homeomorphisms from S {\displaystyle S} to itself. It can be viewed as a moduli space for marked hyperbolic structure on the surface, and this endows it...
    33 KB (4,998 words) - 04:25, 19 April 2025
  • Thumbnail for Complex plane
    more easily in polar coordinates: the magnitude or modulus of the product is the product of the two absolute values, or moduli, and the angle or argument...
    31 KB (4,502 words) - 23:12, 6 May 2025
  • The coordinates a 1 , b 1 , a 2 , b 2 , … {\displaystyle a_{1},b_{1},a_{2},b_{2},\ldots } serve as coordinates for the moduli space of twisted...
    38 KB (6,298 words) - 04:20, 17 February 2025
  • Thumbnail for Pair of pants (mathematics)
    surfaces into pairs of pants are used to construct the Fenchel-Nielsen coordinates on Teichmüller space, and in topological quantum field theory where they...
    12 KB (1,711 words) - 11:54, 3 December 2023
  • {C} /\Lambda } to the projective elliptic curve defined in homogeneous coordinates by E = { ( x : y : z ) ∈ C 3 ∣ y 2 z = 4 x 3 − g 2 x z 2 − g 3 z 3 }...
    15 KB (2,071 words) - 23:40, 18 June 2024
  • latter space has a distinguished system of homogeneous coordinates, given by the Plücker coordinates. An effective algebraic cycle in P n − 1 {\displaystyle...
    13 KB (2,177 words) - 07:57, 29 April 2025
  • triangle use trigonometry, side lengths (Heron's formula), vectors, coordinates, line integrals, Pick's theorem, or other properties. Heron of Alexandria...
    20 KB (3,535 words) - 11:46, 13 May 2025
  • "projective coordinates" to refer to what is commonly called Jacobian coordinates. An additional speed-up is possible if mixed coordinates are used. Reduction...
    39 KB (4,677 words) - 13:04, 20 May 2025
  • Thumbnail for Sierpiński triangle
    triangle have a simple characterization in barycentric coordinates. If a point has barycentric coordinates ( 0. u 1 u 2 u 3 … , 0. v 1 v 2 v 3 … , 0. w 1 w...
    23 KB (2,723 words) - 22:57, 17 March 2025
  • Thumbnail for Torus
    }\\z(\theta ,\varphi )&=r\cos \theta \\\end{aligned}}} using angular coordinates θ, φ ∈ [0, 2π), representing rotation around the tube and rotation around...
    40 KB (5,169 words) - 14:24, 31 May 2025
  • different parabola. That is, they specify coordinates on the 'space of parabolas': this is known as a moduli space of parabolas. Lambda calculus Observable...
    31 KB (3,784 words) - 03:15, 3 May 2025
  • leaves of the Lagrangian foliation are tori, and the natural linear coordinates on these are called "angle" variables. The cycles of the canonical 1...
    28 KB (3,407 words) - 13:15, 11 February 2025
  • Thumbnail for Black hole
    Eddington showed that the singularity disappeared after a change of coordinates. In 1933, Georges Lemaître realised that this meant the singularity at...
    165 KB (18,730 words) - 14:43, 30 May 2025
  • Thumbnail for Protein
    about thousands of proteins can be obtained in the form of Cartesian coordinates for each atom in the protein. Many more gene sequences are known than...
    105 KB (10,957 words) - 13:53, 25 May 2025
  • introducing in particular the use of what are now generally called Chow coordinates (which were in some form familiar to Arthur Cayley). He married Margot...
    6 KB (524 words) - 18:44, 25 October 2024
  • Thumbnail for Birational geometry
    lower-dimensional subset. Concretely, a rational map can be written in coordinates using rational functions. A birational map from X to Y is a rational...
    20 KB (2,684 words) - 07:21, 17 April 2025
  • Thumbnail for Universe
    four coordinates: (x, y, z, t). Cosmologists often work with space-like slices of spacetime that are surfaces of constant time in comoving coordinates. The...
    153 KB (15,934 words) - 10:16, 29 May 2025
  • freedom), of which the kinetic part coincides with the Kähler potential of the moduli space of vacua. Before taking the low-energy effective action, the theory...
    18 KB (2,560 words) - 12:32, 21 November 2024
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