In mathematics, a topological vector space (also called a linear topological space and commonly abbreviated TVS or t.v.s.) is one of the basic structures investigated in functional analysis.
A topological vector space is a vector space that is also a topological space with the property that the vector space operations (vector addition and scalar multiplication) are also continuous functions. Such a topology is called a vector topology and every topological vector space has a uniform topological structure, allowing a notion of uniform convergence and completeness. Some authors also require that the space is a Hausdorff space (although this article does not). One of the most widely studied categories of TVSs are locally convex topological vector spaces. This article focuses on TVSs that are not necessarily locally convex. Banach spaces, Hilbert spaces and Sobolev spaces are other well-known examples of TVSs.
Many topological vector spaces are spaces of functions, or linear operators acting on topological vector spaces, and the topology is often defined so as to capture a particular notion of convergence of sequences of functions.
In this article, the scalar field of a topological vector space will be assumed to be either the complex numbers or the real numbers unless clearly stated otherwise.
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In mathematics, a topologicalvectorspace (also called a linear topologicalspace and commonly abbreviated TVS or t.v.s.) is one of the basic structures...
convex topologicalvectorspaces (LCTVS) or locally convex spaces are examples of topologicalvectorspaces (TVS) that generalize normed spaces. They can...
analysis and related areas of mathematics, a complete topologicalvectorspace is a topologicalvectorspace (TVS) with the property that whenever points get...
put it more abstractly every seminormed vectorspace is a topologicalvectorspace and thus carries a topological structure which is induced by the semi-norm...
be called the algebraic dual space. When defined for a topologicalvectorspace, there is a subspace of the dual space, corresponding to continuous linear...
is a compact complete set that is not closed. Any topologicalvectorspace is an abelian topological group under addition, so the above conditions apply...
the case of topologicalvectorspaces, which include function spaces, inner product spaces, normed spaces, Hilbert spaces and Banach spaces. In this article...
if it is complete as a topologicalvectorspace. If ( X , τ ) {\displaystyle (X,\tau )} is a metrizable topologicalvectorspace (such as any norm induced...
general topology Exterior space Hausdorff space – Type of topologicalspace Hilbert space – Type of topologicalvectorspace Hemicontinuity Linear subspace –...
pseudometrizable) topologicalvectorspace (TVS) is a TVS whose topology is induced by a metric (resp. pseudometric). An LM-space is an inductive limit...
\end{bmatrix}}.} A topologicalvectorspace (TVS) X , {\displaystyle X,} such as a Banach space, is said to be a topological direct sum of two vector subspaces...
techniques to bring function spaces as topologicalvectorspaces within reach of the ideas that would apply to normed spaces of finite dimension. Here we...
functional analysis and related areas of mathematics, Schwartz spaces are topologicalvectorspaces (TVS) whose neighborhoods of the origin have a property similar...
mathematics, a metrizable space is a topologicalspace that is homeomorphic to a metric space. That is, a topologicalspace ( X , τ ) {\displaystyle (X...
In mathematics, topological groups are the combination of groups and topologicalspaces, i.e. they are groups and topologicalspaces at the same time,...
mathematics, a barrelled space (also written barreled space) is a topologicalvectorspace (TVS) for which every barrelled set in the space is a neighbourhood...
mathematics, nuclear spaces are topologicalvectorspaces that can be viewed as a generalization of finite-dimensional Euclidean spaces and share many of...
also refer to a property of topologicalvectorspaces, or of functions from a topologicalspace into a topologicalvectorspace (TVS). A subset B ⊆ X {\displaystyle...
mathematics known as functional analysis, a reflexive space is a locally convex topologicalvectorspace for which the canonical evaluation map from X {\displaystyle...
analysis and order theory, an ordered topologicalvectorspace, also called an ordered TVS, is a topologicalvectorspace (TVS) X that has a partial order...
certain initial topologies, often on topologicalvectorspaces or spaces of linear operators, for instance on a Hilbert space. The term is most commonly used...
a topological homomorphism or simply homomorphism (if no confusion will arise) is the analog of homomorphisms for the category of topologicalvector spaces...
metrizable topologicalvectorspace X {\displaystyle X} (such as a Fréchet space or an F-space) into a Hausdorff topologicalvectorspace Y . {\displaystyle...