• 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...
    38 KB (5,046 words) - 02:07, 28 September 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 (3,124 words) - 22:11, 15 September 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) - 13:16, 27 July 2024
  • 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
  • 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 (1,884 words) - 18:24, 15 August 2024
  • 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 (647 words) - 05:07, 22 June 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 (3,306 words) - 23:50, 27 September 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...
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  • 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...
    4 KB (739 words) - 12:06, 8 November 2023
  • 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...
    2 KB (262 words) - 13:01, 5 November 2023
  • 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...
    15 KB (2,071 words) - 23:40, 18 June 2024
  • 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 (681 words) - 15:49, 11 October 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 (806 words) - 09:43, 9 October 2024
  • 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 (3,269 words) - 15:29, 27 September 2024
  • 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...
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  • In mathematics, an algebraic torus, where a one dimensional torus is typically denoted by G m {\displaystyle \mathbf {G} _{\mathbf {m} }} , G m {\displaystyle...
    24 KB (3,967 words) - 11:13, 2 July 2024
  • 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
  • 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
  • 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) - 13:40, 25 July 2024
  • 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
  • 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
  • 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
  • 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
  • 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...
    5 KB (730 words) - 08:06, 21 August 2024
  • The torus is defined as a product of two circles T 2 = S 1 × S 1 {\displaystyle T^{2}=S^{1}\times S^{1}} . The torus has a single path-connected...
    54 KB (8,242 words) - 12:44, 4 October 2024
  • 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) - 09:02, 13 September 2024
  • ^{*}} . This is useful when studying complex tori because the character group of the lattice in a complex torus V / Λ {\displaystyle V/\Lambda } is canonically...
    8 KB (1,515 words) - 13:12, 20 September 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...
    14 KB (2,151 words) - 03:26, 29 September 2024