Displaying similar documents to “The Lévy continuity theorem for nuclear groups”

Some aspects of nuclear vector groups

Lydia Außenhofer (2001)

Studia Mathematica

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In [2] W. Banaszczyk introduced nuclear groups, a Hausdorff variety of abelian topological groups which is generated by all nuclear vector groups (cf. 2.3) and which contains all nuclear vector spaces and all locally compact abelian groups. We prove in 5.6 that the Hausdorff variety generated by all nuclear vector spaces and all locally compact abelian groups (denoted by 𝒱₁) is strictly smaller than the Hausdorff variety of all nuclear groups (denoted by 𝒱₂). More...

Quotient groups of non-nuclear spaces for which the Bochner theorem fails completely

Robert Stegliński (2005)

Studia Mathematica

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It is proved that every real metrizable locally convex space which is not nuclear contains a closed additive subgroup K such that the quotient group G = (span K)/K admits a non-trivial continuous positive definite function, but no non-trivial continuous character. Consequently, G cannot satisfy any form of the Bochner theorem.