• Thumbnail for Diffeomorphism
    diffeomorphism; those equivalent to a diffeomorphism leaving a simple closed curve invariant; and those equivalent to pseudo-Anosov diffeomorphisms....
    25 KB (4,165 words) - 15:27, 23 February 2024
  • U → f ( U ) {\displaystyle f\vert _{U}:U\to f(U)} is a diffeomorphism. A local diffeomorphism is a special case of an immersion f : X → Y {\displaystyle...
    6 KB (948 words) - 06:33, 17 October 2024
  • theoretical physics, a large diffeomorphism is an equivalence class of diffeomorphisms under the equivalence relation where diffeomorphisms that can be continuously...
    1 KB (183 words) - 13:40, 24 June 2023
  • orientation-preserving diffeomorphism group of M (only the identity component of mappings homotopic to the identity diffeomorphism if you wish) and Diffx1(M)...
    7 KB (850 words) - 04:23, 4 November 2024
  • Bernoulli map, and Arnold's cat map. If the map is a diffeomorphism, then it is called an Anosov diffeomorphism. If a flow on a manifold splits the tangent bundle...
    11 KB (1,938 words) - 01:06, 21 January 2024
  • In theoretical physics, general covariance, also known as diffeomorphism covariance or general invariance, consists of the invariance of the form of physical...
    6 KB (657 words) - 00:01, 23 May 2024
  • theoretical physics, it is often important to study theories with the diffeomorphism symmetry such as general relativity. These theories are invariant under...
    969 bytes (94 words) - 19:55, 12 July 2024
  • the entire manifold M is hyperbolic, the map f is called an Anosov diffeomorphism. The dynamics of f on a hyperbolic set, or hyperbolic dynamics, exhibits...
    3 KB (508 words) - 14:51, 22 September 2024
  • In mathematics, Denjoy's theorem may refer to several theorems proved by Arnaud Denjoy, including Denjoy–Carleman theorem Denjoy–Koksma inequality Denjoy–Luzin...
    386 bytes (74 words) - 07:04, 9 October 2015
  • Thumbnail for Gravitational anomaly
    synonymous with diffeomorphism anomaly, since general covariance is symmetry under coordinate reparametrization; i.e. diffeomorphism. General covariance...
    4 KB (576 words) - 20:36, 4 August 2024
  • Thumbnail for Differential topology
    of all smooth manifolds up to diffeomorphism. Since dimension is an invariant of smooth manifolds up to diffeomorphism type, this classification is often...
    15 KB (1,837 words) - 18:20, 27 July 2023
  • Thumbnail for Special unitary group
    unitary SU(n) Symplectic Sp(n) G2 F4 E6 E7 E8 Lorentz Poincaré Conformal Diffeomorphism Loop Infinite dimensional Lie group O(∞) SU(∞) Sp(∞) Algebraic groups...
    34 KB (5,711 words) - 08:07, 3 October 2024
  • Thumbnail for Homogeneous space
    group elements are diffeomorphisms. The structure of a G-space is a group homomorphism ρ : G → Diffeo(X) into the diffeomorphism group of X. Riemannian...
    15 KB (1,821 words) - 03:07, 6 August 2024
  • differential geometry—a geodesic map (or geodesic mapping or geodesic diffeomorphism) is a function that "preserves geodesics". More precisely, given two...
    4 KB (438 words) - 01:52, 23 October 2022
  • morphisms (or both) Large diffeomorphism, a diffeomorphism that cannot be continuously connected to the identity diffeomorphism in mathematics and physics...
    1 KB (217 words) - 00:23, 7 October 2024
  • Thumbnail for Isomorphism
    spaces. A homeomorphism is an isomorphism of topological spaces. A diffeomorphism is an isomorphism of spaces equipped with a differential structure,...
    18 KB (2,602 words) - 07:27, 30 October 2024
  • Thumbnail for Canonical quantum gravity
    The first class constraints of general relativity are the spatial diffeomorphism constraint and the Hamiltonian constraint (also known as the Wheeler–De...
    25 KB (3,803 words) - 07:12, 6 February 2024
  • Thumbnail for Wheeler–DeWitt equation
    commutation relations with the diffeomorphism constraints generate the Bergman–Komar "group" (which is the diffeomorphism group on-shell). In canonical...
    11 KB (1,668 words) - 23:54, 7 September 2024
  • diffeomorphisms of a manifold. Given a differentiable manifold M (with or without boundary), a pseudo-isotopy diffeomorphism of M is a diffeomorphism...
    2 KB (283 words) - 00:56, 19 November 2023
  • pseudo-Anosov map is a type of a diffeomorphism or homeomorphism of a surface. It is a generalization of a linear Anosov diffeomorphism of the torus. Its definition...
    4 KB (625 words) - 01:57, 28 April 2021
  • Cartan's equivalence method (category Diffeomorphisms)
    up to a diffeomorphism. For example, if M and N are two Riemannian manifolds with metrics g and h, respectively, when is there a diffeomorphism ϕ : M →...
    8 KB (1,252 words) - 07:17, 15 March 2024
  • Thumbnail for Stephen Smale
    awarded the Wolf Prize in mathematics. Smale proved that the oriented diffeomorphism group of the two-dimensional sphere has the same homotopy type as the...
    23 KB (2,160 words) - 19:36, 22 May 2024
  • Thumbnail for Gauge theory
    system can be chosen freely under arbitrary diffeomorphisms of spacetime. Both gauge invariance and diffeomorphism invariance reflect a redundancy in the description...
    47 KB (6,766 words) - 07:11, 30 October 2024
  • Anosov system. Let M be a smooth manifold with a diffeomorphism f: M→M. Then f is an axiom A diffeomorphism if the following two conditions hold: The nonwandering...
    5 KB (647 words) - 18:16, 27 January 2023
  • Thumbnail for Gravitational singularity
    conical singularity occurs when there is a point where the limit of some diffeomorphism invariant quantity does not exist or is infinite, in which case spacetime...
    24 KB (3,020 words) - 01:25, 4 November 2024
  • Nonetheless, although not a gauge interaction nor generated by any diffeomorphism symmetry, the Higgs field's cubic Yukawa coupling produces a weakly...
    39 KB (4,836 words) - 05:30, 25 October 2024
  • interpreted as a continuous 1-cocycle or crossed homomorphism of the diffeomorphism group of the circle with coefficients in the module of densities of...
    45 KB (6,967 words) - 22:19, 8 June 2024
  • Thumbnail for Surface (topology)
    higher-dimensional manifolds.) Thus closed surfaces are classified up to diffeomorphism by their Euler characteristic and orientability. Smooth surfaces equipped...
    32 KB (4,170 words) - 00:57, 27 September 2024
  • ϕ {\displaystyle \phi } . When the map ϕ {\displaystyle \phi } is a diffeomorphism, then the pullback, together with the pushforward, can be used to transform...
    13 KB (2,251 words) - 10:33, 30 October 2024
  • Thumbnail for Loop quantum gravity
    spatial diffeomorphism on γ {\displaystyle \gamma } instead. Therefore, the meaning of O ^ ′ {\displaystyle {\hat {O}}'} is a spatial diffeomorphism on γ...
    118 KB (16,618 words) - 18:43, 23 October 2024