• mathematics, a hyperelliptic surface, or bi-elliptic surface, is a surface whose Albanese morphism is an elliptic fibration. Any such surface can be written...
    4 KB (397 words) - 21:40, 7 September 2024
  • also gets singular and supersingular Enriques surfaces in characteristic 2, and quasi-hyperelliptic surfaces in characteristics 2 and 3. The Enriques–Kodaira...
    31 KB (4,245 words) - 12:01, 28 February 2024
  • Thumbnail for Hyperelliptic curve
    In algebraic geometry, a hyperelliptic curve is an algebraic curve of genus g > 1, given by an equation of the form y 2 + h ( x ) y = f ( x ) {\displaystyle...
    7 KB (1,104 words) - 16:58, 11 April 2024
  • Thumbnail for Riemann surface
    elliptic function. Likewise, genus g surfaces have Riemann surface structures, as (compactifications of) hyperelliptic surfaces y2 = Q(x), where Q is a complex...
    26 KB (3,306 words) - 11:22, 3 September 2024
  • cubic surfaces, Veronese surface, del Pezzo surfaces, ruled surfaces κ = 0 : K3 surfaces, abelian surfaces, Enriques surfaces, hyperelliptic surfaces κ = 1:...
    7 KB (973 words) - 18:40, 4 February 2024
  • Enriques surfaces, a variation on the notion of Enriques surfaces that only exist in characteristic two Hyperelliptic surfaces or bielliptic surfaces; quasi-hyperelliptic...
    7 KB (828 words) - 18:38, 4 February 2024
  • Thumbnail for Calabi–Yau manifold
    converse is not true. The simplest examples where this happens are hyperelliptic surfaces, finite quotients of a complex torus of complex dimension 2, which...
    24 KB (3,249 words) - 04:34, 10 September 2024
  • Thumbnail for Kummer surface
    number of 16 double points. Any such surface is the Kummer variety of the Jacobian variety of a smooth hyperelliptic curve of genus 2; i.e. a quotient of...
    9 KB (1,547 words) - 10:27, 24 August 2024
  • curve for higher genus hyperelliptic curves arises in the same way with higher power monomials in x. Otherwise, for non-hyperelliptic C which means g is at...
    16 KB (2,529 words) - 19:58, 22 July 2024
  • Shafarevich in a seminar introduced an important numerical invariant of surfaces with the notation κ. Shigeru Iitaka extended it and defined the Kodaira...
    20 KB (2,402 words) - 02:25, 9 June 2024
  • to all curves over the complex numbers. They include for example the hyperelliptic integrals of type ∫ x k d x Q ( x ) {\displaystyle \int {\frac {x^{k}\...
    4 KB (530 words) - 04:59, 21 May 2023
  • Hyperelliptic curve cryptography is similar to elliptic curve cryptography (ECC) insofar as the Jacobian of a hyperelliptic curve is an abelian group...
    11 KB (1,824 words) - 20:05, 18 June 2024
  • Thumbnail for David Mumford
    surfaces. b) Kodaira dimension 0. These are the K3 surfaces, abelian surfaces, hyperelliptic and quasi-hyperelliptic surfaces, and Enriques surfaces....
    20 KB (2,067 words) - 23:34, 15 September 2024
  • solvmanifolds; these are complex torus, hyperelliptic surface, Kodaira surface and Inoue surfaces S0, S+ and S−. The Inoue surfaces are constructed explicitly as...
    7 KB (1,184 words) - 05:06, 2 July 2021
  • (algebraic) Elkies trinomial curves Hyperelliptic curve Klein quartic Classical modular curve Erdős lemniscate Hurwitz surface Mandelbrot curve Polynomial lemniscate...
    8 KB (206 words) - 01:55, 24 July 2024
  • Thumbnail for Tobler hyperelliptical projection
    The Tobler hyperelliptical projection is a family of equal-area pseudocylindrical projections that may be used for world maps. Waldo R. Tobler introduced...
    3 KB (405 words) - 00:26, 1 September 2024
  • Filling area conjecture (category Differential geometry of surfaces)
    non-orientable closed surface obtained in this way has an orientable double cover of genus two, and is therefore hyperelliptic. The proof then exploits...
    18 KB (1,710 words) - 01:46, 25 April 2024
  • elliptic functions Elliptic integral Complex multiplication Weil pairing Hyperelliptic curve Klein quartic Modular curve Modular equation Modular function...
    7 KB (600 words) - 19:55, 10 January 2024
  • Thumbnail for Constant-mean-curvature surface
    \lambda _{1},\lambda _{2},L)} where Σ {\displaystyle \Sigma } is a hyperelliptic curve called the spectral curve, λ {\displaystyle \lambda } is a meromorphic...
    16 KB (2,044 words) - 14:20, 26 February 2024
  • Thumbnail for Map projection
    equal-area polyhedral projection, used for geodesic grids. Tobler hyperelliptical Werner If the length of the line segment connecting two projected points...
    59 KB (6,478 words) - 14:24, 30 August 2024
  • Griffiths in 1980 with thesis Semistable Degenerations of Enriques' and Hyperelliptic Surfaces. From 1980 he was an instructor and from 1982 an assistant professor...
    5 KB (571 words) - 02:37, 17 March 2024
  • canonical divisor, or if C is a hyperelliptic curve and D linearly equivalent to an integral multiple of a hyperelliptic divisor. The Clifford index of...
    6 KB (734 words) - 14:10, 21 December 2021
  • Thumbnail for Michele de Franchis
    Bordin of the Académie des Sciences of Paris for their work on hyperelliptic surfaces. De Franchis and Bagnera were Invited Speakers at the ICM in 1908...
    5 KB (460 words) - 13:28, 12 January 2023
  • 1017/S0143385704001014. Katz, Mikhail G.; Sabourau, Stéphane (2006). "Hyperelliptic surfaces are Loewner". Proceedings of the American Mathematical Society....
    7 KB (947 words) - 09:17, 30 January 2024
  • Fermat curve Sinusoidal spiral Superellipse Hurwitz surface Elkies trinomial curves Hyperelliptic curve Classical modular curve Cassini oval Bowditch...
    7 KB (528 words) - 02:32, 24 July 2024
  • Thumbnail for Systolic geometry
    the hyperelliptic quotient of the Riemann surface proves the filling area conjecture in this case. Other systolic ramifications of hyperellipticity have...
    27 KB (3,932 words) - 12:11, 5 March 2024
  • double cover of an elliptic curve. 2.  A bielliptic surface is the same as a hyperelliptic surface. bifid 1.  Split into two equal parts 2.  A bifid map...
    81 KB (11,125 words) - 11:46, 25 February 2024
  • Thumbnail for Linear system of divisors
    linear systems is used in the classification of algebraic curves. A hyperelliptic curve is a curve C {\displaystyle C} with a degre 2 {\displaystyle 2}...
    17 KB (2,910 words) - 10:26, 28 August 2024
  • Thumbnail for Dymaxion map
    Fuller projection, is a kind of polyhedral map projection of the Earth's surface onto the unfolded net of an icosahedron. The resulting map is heavily interrupted...
    13 KB (1,373 words) - 05:22, 12 September 2024
  • surface maximizes the length of the systole (Schmutz 1993). As a hyperelliptic Riemann surface, it arises as the ramified double cover of the Riemann sphere...
    13 KB (1,972 words) - 15:48, 7 December 2023