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  2. Correspondence (algebraic geometry) - Wikipedia

    en.wikipedia.org/wiki/Correspondence_(algebraic...

    In algebraic geometry, a correspondence between algebraic varieties V and W is a subset R of V×W, that is closed in the Zariski topology.In set theory, a subset of a Cartesian product of two sets is called a binary relation or correspondence; thus, a correspondence here is a relation that is defined by algebraic equations.

  3. Geometric Langlands correspondence - Wikipedia

    en.wikipedia.org/wiki/Geometric_Langlands...

    In mathematics, the geometric Langlands correspondence relates algebraic geometry and representation theory.It is a reformulation of the Langlands correspondence obtained by replacing the number fields appearing in the original number theoretic version by function fields and applying techniques from algebraic geometry. [1]

  4. Kobayashi–Hitchin correspondence - Wikipedia

    en.wikipedia.org/wiki/Kobayashi–Hitchin...

    The Kobayashi–Hitchin correspondence has found a variety of important applications throughout algebraic geometry, differential geometry, and differential topology. By providing two alternative descriptions of the moduli space of stable holomorphic vector bundles over a complex manifold, one algebraic in nature and the other analytic, many ...

  5. Algebraic variety - Wikipedia

    en.wikipedia.org/wiki/Algebraic_variety

    This correspondence is a defining feature of algebraic geometry. Many algebraic varieties are differentiable manifolds, but an algebraic variety may have singular points while a differentiable manifold cannot. Algebraic varieties can be characterized by their dimension. Algebraic varieties of dimension one are called algebraic curves and ...

  6. Correspondence - Wikipedia

    en.wikipedia.org/wiki/Correspondence

    Correspondence (algebraic geometry), between two algebraic varieties; Corresponding sides and corresponding angles, between two polygons; Correspondence (category theory), the opposite of a profunctor; Correspondence (von Neumann algebra) or bimodule, a type of Hilbert space; Correspondence analysis, a multivariate statistical technique

  7. Galois connection - Wikipedia

    en.wikipedia.org/wiki/Galois_connection

    In algebraic geometry, the relation between sets of polynomials and their zero sets is an antitone Galois connection. Fix a natural number n and a field K and let A be the set of all subsets of the polynomial ring K[X 1, ..., X n] ordered by inclusion ⊆, and let B be the set of all subsets of K n ordered by inclusion ⊆.

  8. Riemann–Hilbert correspondence - Wikipedia

    en.wikipedia.org/wiki/Riemann–Hilbert...

    Suppose that X is a smooth complex algebraic variety.. Riemann–Hilbert correspondence (for regular singular connections): there is a functor Sol called the local solutions functor, that is an equivalence from the category of flat connections on algebraic vector bundles on X with regular singularities to the category of local systems of finite-dimensional complex vector spaces on X.

  9. Ring theory - Wikipedia

    en.wikipedia.org/wiki/Ring_theory

    Algebraic geometry is in many ways the mirror image of commutative algebra. This correspondence started with Hilbert's Nullstellensatz that establishes a one-to-one correspondence between the points of an algebraic variety, and the maximal ideals of its coordinate ring. This correspondence has been enlarged and systematized for translating (and ...

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