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Local diffeomorphism information


In mathematics, more specifically differential topology, a local diffeomorphism is intuitively a map between smooth manifolds that preserves the local differentiable structure. The formal definition of a local diffeomorphism is given below.

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Local diffeomorphism

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injective open map. A local diffeomorphism has constant rank of n . {\displaystyle n.} A diffeomorphism is a bijective local diffeomorphism. A smooth covering...

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Diffeomorphism

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diffeomorphism; those equivalent to a diffeomorphism leaving a simple closed curve invariant; and those equivalent to pseudo-Anosov diffeomorphisms....

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Anosov diffeomorphism

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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...

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Representation theory of diffeomorphism groups

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orientation-preserving diffeomorphism group of M (only the identity component of mappings homotopic to the identity diffeomorphism if you wish) and Diffx1(M)...

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Local homeomorphism

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Theorem in topology about homeomorphic subsets of Euclidean space Local diffeomorphism Locally Hausdorff space Non-Hausdorff manifold – generalization of...

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Isometry

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{\displaystyle \ f\ } is a local diffeomorphism such that   g = f ∗ g ′   , {\displaystyle \ g=f^{*}g'\ ,} then f {\displaystyle f} is called a local isometry. A collection...

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Tangent space

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following: Theorem — If φ : M → N {\displaystyle \varphi :M\to N} is a local diffeomorphism at x {\displaystyle x} in M {\displaystyle M} , then d φ x : T x...

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Lie groupoid

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{G}}} with the same Lie algebroid of G {\displaystyle G} , and a local diffeomorphism G ~ → G {\displaystyle {\tilde {G}}\to G} which is a groupoid morphism...

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Logarithm of a matrix

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{\displaystyle {\mathfrak {g}}} . Note that the exponential map is a local diffeomorphism between a neighborhood U of the zero matrix 0 _ ∈ g {\displaystyle...

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Differential topology

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of all smooth manifolds up to diffeomorphism. Since dimension is an invariant of smooth manifolds up to diffeomorphism type, this classification is often...

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General covariance

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In theoretical physics, general covariance, also known as diffeomorphism covariance or general invariance, consists of the invariance of the form of physical...

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Stable manifold theorem

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roughly states that the existence of a local diffeomorphism near a fixed point implies the existence of a local stable center manifold containing that...

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Axiom A

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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...

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Degree of a continuous mapping

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regular value, in a neighborhood of each xi the map f is a local diffeomorphism. Diffeomorphisms can be either orientation preserving or orientation reversing...

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Conformal geometry

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a Möbius geometry, meaning that there exists an angle preserving local diffeomorphism from the manifold into a Möbius geometry. In two dimensions, every...

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Inverse function theorem

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of F is an isomorphism at all points p in M then the map F is a local diffeomorphism. The inverse function theorem can also be generalized to differentiable...

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Embedding

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injective function is locally injective but not conversely. Local diffeomorphisms, local homeomorphisms, and smooth immersions are all locally injective...

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Pseudogroup

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In mathematics, a pseudogroup is a set of diffeomorphisms between open sets of a space, satisfying group-like and sheaf-like properties. It is a generalisation[dubious...

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State observer

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transformation H ( x ) {\displaystyle H(x)} is guaranteed to be a local diffeomorphism. The diagonal matrix M ( x ^ ) {\displaystyle M({\hat {x}})} of gains...

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Lie derivative

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one-dimensional groups of diffeomorphisms) on M, the Lie derivative is the differential of the representation of the diffeomorphism group on tensor fields...

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Peetre theorem

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linear mapping of vector bundles. The problem is invariant under local diffeomorphism, so it is sufficient to prove it when M is an open set in Rn and...

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