• Thumbnail for Complex torus
    In mathematics, a complex torus is a particular kind of complex manifold M whose underlying smooth manifold is a torus in the usual sense (i.e. the cartesian...
    31 KB (5,876 words) - 19:58, 16 February 2024
  • Thumbnail for Torus
    is called a torus of revolution, also known as a ring torus. If the axis of revolution is tangent to the circle, the surface is a horn torus. If the axis...
    37 KB (4,970 words) - 03:41, 5 June 2024
  • Thumbnail for Abelian variety
    and Albanese varieties). A complex torus of dimension g is a torus of real dimension 2g that carries the structure of a complex manifold. It can always be...
    21 KB (2,918 words) - 10:20, 25 April 2024
  • Thumbnail for Torus knot
    In knot theory, a torus knot is a special kind of knot that lies on the surface of an unknotted torus in R3. Similarly, a torus link is a link which lies...
    16 KB (1,790 words) - 11:30, 5 December 2023
  • groups over the complex numbers. A connected compact complex Lie group is precisely a complex torus (not to be confused with the complex Lie group C ∗ {\displaystyle...
    4 KB (640 words) - 06:58, 5 June 2024
  • Z[i] is the Gaussian integer ring, and θ is any non-zero complex number. Any such complex torus has the Gaussian integers as endomorphism ring. It is known...
    14 KB (1,995 words) - 07:40, 4 January 2023
  • considers an action of a real or complex torus on a manifold (or an orbifold). A normal algebraic variety with a torus acting on it in such a way that...
    4 KB (646 words) - 23:40, 12 May 2024
  • Thumbnail for Riemann surface
    and torus admit complex structures but the Möbius strip, Klein bottle and real projective plane do not. Every compact Riemann surface is a complex algebraic...
    26 KB (3,305 words) - 13:14, 9 May 2024
  • (real) compact Lie group is a torus; i.e., a Lie group isomorphic to ( S 1 ) h {\displaystyle (S^{1})^{h}} . A connected complex Lie group that is a compact...
    2 KB (213 words) - 13:43, 3 September 2021
  • Thumbnail for Torus fracture
    itself is orthogonal to that axis. The word "torus" originates from the Latin word "protuberance." Torus fractures are low risk and may cause acute pain...
    8 KB (948 words) - 11:10, 20 August 2023
  • rational map f = ΘLΘ−1 from the complex sphere to itself such that Θ is a holomorphic map from a complex torus to the complex sphere and L is an affine map...
    948 bytes (106 words) - 20:04, 16 May 2020
  • Thumbnail for Clifford torus
    Stated another way, a torus embedded in R3 is an asymmetric reduced-dimension projection of the maximally symmetric Clifford torus embedded in R4. The relationship...
    13 KB (1,881 words) - 06:27, 10 June 2024
  • the definitionpg 30. For a complex torus X = V / Λ {\displaystyle X=V/\Lambda } , where V {\displaystyle V} is a complex vector space of dimension n...
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  • Genus g surface (redirect from Double torus)
    In mathematics, a genus g surface (also known as a g-torus or g-holed torus) is a surface formed by the connected sum of g distinct tori: the interior...
    6 KB (611 words) - 03:07, 3 December 2023
  • compact torus. It has been shown that every principal torus bundle over a torus is of this form, see. More generally, a compact nilmanifold is a torus bundle...
    11 KB (1,538 words) - 08:36, 10 March 2024
  • polarized abelian variety, of dimension g, and hence, over the complex numbers, it is a complex torus. If p is a point of C, then the curve C can be mapped to...
    7 KB (805 words) - 19:27, 14 March 2024
  • algebraic torus (which is not necessarily compact, in contrast to a complex torus). A k-torus is a torus defined over k. The centralizer of a maximal torus is...
    2 KB (244 words) - 12:15, 13 August 2023
  • Thumbnail for Eisenstein integer
    of weight 6. The quotient of the complex plane C by the lattice containing all Eisenstein integers is a complex torus of real dimension 2. This is one...
    12 KB (1,643 words) - 23:18, 30 May 2024
  • Abelian surface (category Complex surfaces)
    curve. Hodge theory Complex torus Barth, Wolf P.; Hulek, Klaus; Peters, Chris A.M.; Van de Ven, Antonius (2004), Compact Complex Surfaces, Ergebnisse...
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  • intermediate Jacobian of a compact Kähler manifold or Hodge structure is a complex torus that is a common generalization of the Jacobian variety of a curve and...
    4 KB (538 words) - 03:38, 21 February 2024
  • In mathematics, an algebraic torus, where a one dimensional torus is typically denoted by G m {\displaystyle \mathbf {G} _{\mathbf {m} }} , G m {\displaystyle...
    23 KB (3,965 words) - 08:45, 26 December 2022
  • Thumbnail for Calabi–Yau manifold
    Calabi–Yau manifold (category Complex manifolds)
    this happens are hyperelliptic surfaces, finite quotients of a complex torus of complex dimension 2, which have vanishing first integral Chern class but...
    24 KB (3,212 words) - 22:00, 12 June 2024
  • Thumbnail for Trefoil knot
    3t\end{aligned}}} The (2,3)-torus knot is also a trefoil knot. The following parametric equations give a (2,3)-torus knot lying on torus ( r − 2 ) 2 + z 2 = 1...
    9 KB (1,239 words) - 08:07, 2 November 2023
  • alternatization of its Chern class is the given Riemann form. Furthermore, the complex torus Cg/Λ admits the structure of an abelian variety if and only if there...
    2 KB (262 words) - 17:19, 30 March 2024
  • Appell–Humbert theorem (category Theorems in complex geometry)
    group with the real torus given above. In fact, this torus can be equipped with a complex structure, giving the dual complex torus. Explicitly, a line...
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  • Lie groups a special role is played by torus subgroups, in particular by the maximal torus subgroups. A torus in a compact Lie group G is a compact, connected...
    10 KB (1,734 words) - 04:22, 10 December 2023
  • the commutator subgroup is abelian Abelianisation Abelian variety, a complex torus that can be embedded into projective space Abelian surface, a two-dimensional...
    2 KB (259 words) - 21:45, 5 September 2020
  • Thumbnail for Carl Gustav Jacob Jacobi
    Riemann theta function for algebraic curves of arbitrary genus. The complex torus associated to a genus g {\displaystyle g} algebraic curve, obtained...
    20 KB (2,058 words) - 04:43, 3 June 2024
  • immersed in Euclidean 3-space). Like the torus, cycles a and b cannot be shrunk while c can be. But unlike the torus, following b forwards right round and...
    44 KB (6,433 words) - 07:15, 4 June 2024
  • variety or torus embedding is an algebraic variety containing an algebraic torus as an open dense subset, such that the action of the torus on itself extends...
    9 KB (1,310 words) - 21:21, 12 June 2024