• Thumbnail for Diffeomorphism
    diffeomorphism; those equivalent to a diffeomorphism leaving a simple closed curve invariant; and those equivalent to pseudo-Anosov diffeomorphisms....
    26 KB (4,166 words) - 19:23, 15 May 2025
  • 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 (1,941 words) - 04:34, 2 June 2025
  • 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
  • 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
  • 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) - 03:29, 9 May 2025
  • 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) - 17:30, 2 May 2025
  • 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
  • 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
  • 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
  • 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
  • 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 (1,825 words) - 02:56, 3 May 2025
  • Schoenflies problem (category Diffeomorphisms)
    differ by a diffeomorphism of the unit circle. On the other hand, a diffeomorphism f of the unit circle can be extended to a diffeomorphism F of the unit...
    30 KB (4,226 words) - 11:59, 26 September 2024
  • a Hamiltonian function H). A Hamiltonian diffeomorphism of a symplectic manifold (M, ω) is a diffeomorphism Φ of M which is the integral of a smooth path...
    3 KB (401 words) - 19:11, 19 June 2023
  • G\times _{G_{x}}T_{x}M/T_{x}(G\cdot x)} so that it defines an equivariant diffeomorphism from the neighborhood to its image, which contains the orbit of x {\displaystyle...
    2 KB (262 words) - 16:14, 15 January 2024
  • imaging. The study of deformable shapes in CA rely on high-dimensional diffeomorphism groups Diff V {\displaystyle \operatorname {Diff} _{V}} which generate...
    21 KB (3,649 words) - 09:08, 25 September 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
  • Smale conjecture, named after Stephen Smale, is the statement that the diffeomorphism group of the 3-sphere has the homotopy-type of its isometry group, the...
    3 KB (377 words) - 21:05, 9 May 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 (7,160 words) - 02:41, 24 March 2025
  • 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
  • Denjoy's theorem on rotation number (category Diffeomorphisms)
    gives a sufficient condition for a diffeomorphism of the circle to be topologically conjugate to a diffeomorphism of a special kind, namely an irrational...
    3 KB (343 words) - 00:08, 25 July 2023
  • transformations homeomorphisms and diffeomorphisms since they carry smooth submanifolds smoothly during transformation. Diffeomorphisms are generated in the modern...
    5 KB (504 words) - 02:54, 26 February 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 Horseshoe map
    Horseshoe map (category Diffeomorphisms)
    to a diffeomorphism, the extension cannot always be done in the plane. For example, the map on the right needs to be extended to a diffeomorphism of the...
    15 KB (2,066 words) - 16:56, 11 December 2023
  • 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 (1,632 words) - 03:35, 26 May 2025
  • Thumbnail for Isomorphism
    spaces. A homeomorphism is an isomorphism of topological spaces. A diffeomorphism is an isomorphism of spaces equipped with a differential structure,...
    19 KB (2,735 words) - 08:39, 14 May 2025
  • Thumbnail for Charles C. Pugh
    states: Let f be a diffeomorphism of a compact manifold with a nonwandering point x. Then, there is (in the space of diffeomorphisms, equipped with the...
    4 KB (285 words) - 10:54, 25 November 2024
  • structures on the 7-sphere. In any dimension Milnor (1959) showed that the diffeomorphism classes of oriented exotic spheres form the non-trivial elements of...
    29 KB (3,875 words) - 06:55, 9 May 2025
  • 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 (3,809 words) - 06:13, 11 January 2025