Article ID Journal Published Year Pages File Type
4672852 Indagationes Mathematicae 2014 4 Pages PDF
Abstract
If U,V are closed subspaces of a Fréchet space, then E is the direct sum of U and V if and only if E′ is the algebraic direct sum of the annihilators U∘ and V∘. We provide a simple proof of this (possibly well-known) result.
Related Topics
Physical Sciences and Engineering Mathematics Mathematics (General)
Authors
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