diffeomorphism

  • 41List of mathematics articles (D) — NOTOC D D distribution D module D D Agostino s K squared test D Alembert Euler condition D Alembert operator D Alembert s formula D Alembert s paradox D Alembert s principle Dagger category Dagger compact category Dagger symmetric monoidal… …

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  • 42Hyperbolic set — In mathematics, a subset of a manifold is said to have hyperbolic structure with rspect to a map f , when its tangent bundle may be split into two invariant subbundles, one of which is contracting, and the other expanding with respect to f .… …

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  • 43Surgery theory — In mathematics, specifically in geometric topology, surgery theory is a collection of techniques used to produce one manifold from another in a controlled way, introduced by Milnor (1961). Surgery refers to cutting out parts of the manifold… …

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  • 44BRST quantization — In theoretical physics, BRST quantization (where the BRST refers to Becchi, Rouet, Stora and Tyutin) is a relatively rigorous mathematical approach to quantizing a field theory with a gauge symmetry. Quantization rules in earlier QFT frameworks… …

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  • 45Large (disambiguation) — Large is an English surname.Large may also refer to:In botany:* Large flowered bellwort, plant in the family Liliaceae * Large fruited Elm, small deciduous tree or large shrub endemic to the Far East excluding JapanIn literature:* Geraldo at… …

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  • 46Isometry (Riemannian geometry) — In the study of Riemannian geometry in mathematics, a local isometry from one (pseudo )Riemannian manifold to another is a map which pulls back the metric tensor on the second manifold to the metric tensor on the first. When such a map is also a… …

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  • 47A-equivalence — In mathematics, mathcal{A} equivalence, sometimes called right left equivalence, is an equivalence relation between map germs.Let M and N be two manifolds, and let f, g : (M,x) o (N,y) be two smooth map germs. We say that f and g are mathcal{A}… …

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  • 48Gauss's lemma (Riemannian geometry) — In Riemannian geometry, Gauss s lemma asserts that any sufficiently small sphere centered at a point in a Riemannian manifold is perpendicular to every geodesic through the point. More formally, let M be a Riemannian manifold, equipped with its… …

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  • 49K-equivalence — In mathematics, equivalence, or contact equivalence, is an equivalence relation between map germs. It was introduced by John Mather in his seminal work in Singularity theory in the 1970s as a technical tool for studying stable maps. Since then it …

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  • 50Difféomorphisme — En mathématiques, un difféomorphisme est un isomorphisme dans la catégorie des variétés différentielles : c est une bijection différentiable d une variété dans une autre, dont la bijection réciproque est aussi différentiable. Image d une… …

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