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Category of metric spaces information


In category theory, Met is a category that has metric spaces as its objects and metric maps (continuous functions between metric spaces that do not increase any pairwise distance) as its morphisms. This is a category because the composition of two metric maps is again a metric map. It was first considered by Isbell (1964).

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Category of metric spaces

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In category theory, Met is a category that has metric spaces as its objects and metric maps (continuous functions between metric spaces that do not increase...

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Metric space

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a function called a metric or distance function. Metric spaces are the most general setting for studying many of the concepts of mathematical analysis...

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Metric map

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of metric spaces, a metric map is a function between metric spaces that does not increase any distance. These maps are the morphisms in the category of...

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Discrete space

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in the category of metric spaces bounded by 1 and short maps. That is, any function from a discrete metric space to another bounded metric space is Lipschitz...

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Complete metric space

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distance metric. In contrast, infinite-dimensional normed vector spaces may or may not be complete; those that are complete are Banach spaces. The space C[a...

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Pointed space

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displaying wikidata descriptions as a fallback Category of metric spaces – mathematical category with metric spaces as its objects and distance-non-increasing...

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Category of topological spaces

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generated spaces as objects and continuous maps as morphisms or with the category of compactly generated weak Hausdorff spaces. Like many categories, the category...

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Completely metrizable space

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metrizable spaces is a subcategory of that of topological spaces, while the category of complete metric spaces is not (instead, it is a subcategory of the category...

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Product metric

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In mathematics, a product metric is a metric on the Cartesian product of finitely many metric spaces ( X 1 , d X 1 ) , … , ( X n , d X n ) {\displaystyle...

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Injective metric space

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injective space has a fixed point. A metric space is injective if and only if it is an injective object in the category of metric spaces and metric maps....

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Baire space

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According to the Baire category theorem, compact Hausdorff spaces and complete metric spaces are examples of Baire spaces. The Baire category theorem combined...

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Category of topological vector spaces

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In mathematics, the category of topological vector spaces is the category whose objects are topological vector spaces and whose morphisms are continuous...

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Outline of category theory

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Hilbert spaces Category of sets and relations Category of topological spaces Category of metric spaces Category of preordered sets Category of groups Category...

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List of general topology topics

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theorems Complete space Cauchy sequence Banach fixed-point theorem Polish space Hausdorff distance Intrinsic metric Category of metric spaces Stone duality...

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Baire category theorem

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compact Hausdorff space is a Baire space. Neither of these statements directly implies the other, since there are complete metric spaces that are not locally...

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Totally bounded space

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complete metric spaces, a set is compact if and only if it is closed and totally bounded. Each totally bounded space is bounded (as the union of finitely...

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Met

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of timekeeping during space missions Modular Equipment Transporter (Apollo program), lunar handcart Met, the category of metric spaces having metric maps...

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Uniform space

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completeness, uniform continuity and uniform convergence. Uniform spaces generalize metric spaces and topological groups, but the concept is designed to formulate...

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Minkowski space

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of the Minkowski metric η under inclusion, is a Riemannian metric. With this metric H1(n) R is a Riemannian manifold. It is one of the model spaces of...

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Cauchy space

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Cauchy space is a generalization of metric spaces and uniform spaces for which the notion of Cauchy convergence still makes sense. Cauchy spaces were introduced...

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Complete category

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and finitely cocomplete. The category of complete lattices is complete but not cocomplete. The category of metric spaces, Met, is finitely complete but...

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Normed vector space

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metric spaces need not be the same). And since any Euclidean space is complete, we can thus conclude that all finite-dimensional normed vector spaces...

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Metric space aimed at its subspace

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toward the construction of the metric envelope, or tight span, which are basic (injective) objects of the category of metric spaces. Following (Holsztyński...

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Topological space

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of topological spaces include Euclidean spaces, metric spaces and manifolds. Although very general, the concept of topological spaces is fundamental,...

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Reflective subcategory

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compactification. The category of all complete metric spaces with uniformly continuous mappings is a reflective subcategory of the category of metric spaces. The reflector...

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Ultrametric space

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In mathematics, an ultrametric space is a metric space in which the triangle inequality is strengthened to d ( x , z ) ≤ max { d ( x , y ) , d ( y , z...

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Expansion of the universe

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metric (FLRW), where it corresponds to an increase in the scale of the spatial part of the universe's spacetime metric tensor (which governs...

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Tensor product of Hilbert spaces

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irrespective of the spaces being tensored: this implies that any space with a tensor product is a symmetric monoidal category, and Hilbert spaces are a particular...

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