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单词 BoundednessInATopologicalVectorSpaceGeneralizesBoundednessInANormedSpace
释义

boundedness in a topological vector space generalizes boundedness in a normed space


Boundedness in a topological vector spaceMathworldPlanetmath is a generalizationPlanetmathPlanetmath of boundedness in a normed spaceMathworldPlanetmath.

Suppose (V,) is a normed vector space over , and suppose B is boundedPlanetmathPlanetmathPlanetmathPlanetmath in the sense of the parent entry. Then for the unit ball

B1(0)={vV:v<1}

there exists some λ such that BλB1(0). Usingthis result (http://planetmath.org/ScalingOfTheOpenBallInANormedVectorSpace), it follows that

BB|λ|(0).
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更新时间:2025/5/4 17:28:13