mathematics, a hyperelliptic surface, or bi-elliptic surface, is a surface whose Albanese morphism is an elliptic fibration. Any such surface can be written...
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Enriques–Kodaira classification (redirect from Classification of algebraic surface)
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
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
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:...
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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
Calabi–Yau manifold (section CY algebraic surfaces)
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
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
Canonical bundle (section Hyperelliptic case)
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
Differential of the first kind (redirect from Hyperelliptic integral)
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
David Mumford (section Classification of surfaces)
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
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
\lambda _{1},\lambda _{2},L)} where Σ {\displaystyle \Sigma } is a hyperelliptic curve called the spectral curve, λ {\displaystyle \lambda } is a meromorphic...
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Map projection (section Choosing a projection surface)
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...
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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...
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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
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
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}...
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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...
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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