etale neighborhood

  • 1Étale morphism — In algebraic geometry, a field of mathematics, an étale morphism (pronunciation IPA|) is an algebraic analogue of the notion of a local isomorphism in the complex analytic topology. They satisfy the hypotheses of the implicit function theorem,… …

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  • 2Sheaf (mathematics) — This article is about sheaves on topological spaces. For sheaves on a site see Grothendieck topology and Topos. In mathematics, a sheaf is a tool for systematically tracking locally defined data attached to the open sets of a topological space.… …

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  • 3Algebraic torus — In mathematics, an algebraic torus is a type of commutative affine algebraic group. These groups were named by analogy with the theory of tori in Lie group theory (see maximal torus). The theory of tori is in some sense opposite to that of… …

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  • 4List of mathematics articles (E) — NOTOC E E₇ E (mathematical constant) E function E₈ lattice E₈ manifold E∞ operad E7½ E8 investigation tool Earley parser Early stopping Earnshaw s theorem Earth mover s distance East Journal on Approximations Eastern Arabic numerals Easton s… …

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  • 5Topological modular forms — In mathematics, the spectrum of topological modular forms (also known as tmf ) describes a generalized cohomology theory whose coefficient ring is similar to the graded ring of holomorphic modular forms with integral cusp expansions. These rings… …

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  • 6Diffeomorphism — In mathematics, a diffeomorphism is an isomorphism in the category of smooth manifolds. It is an invertible function that maps one differentiable manifold to another, such that both the function and its inverse are smooth. The image of a… …

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  • 7Artibeus jamaicensis — Artibeus jamaicensis …

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  • 8Mickey (personnage) — Mickey Mouse Mickey Mouse Personnage Disney Marque déposée de Mickey Mouse Espèce …

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  • 9Mickey Mouse — Pour les articles homonymes, voir Mickey. Mickey Mouse Personnage Disney …

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  • 10Ross 248 — Données d observation (Époque J2000.0) Ascension droite 23h 41m 54,7s Déclinaison +44° 10′ 30″ Constellation Andromède Magnitude apparente +12,29 …

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