Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4672852 | Indagationes Mathematicae | 2014 | 4 Pages |
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 Eâ² is the algebraic direct sum of the annihilators Uâ and Vâ. We provide a simple proof of this (possibly well-known) result.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematics (General)
Authors
Jürgen Voigt,