On the closedness of the sum of n subspaces of a Hilbert space

Ivan Feshchenko

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arXiv · 1201.3026

On the closedness of the sum of n subspaces of a Hilbert space

Ivan Feshchenko

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Abstract

We give necessary and sufficient conditions for the sum of n subspaces of a Hilbert space to be closed. We also present various properties of n-tuples of subspaces with closed sum.

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Ivan Feshchenko. 2012-01-14. On the closedness of the sum of n subspaces of a Hilbert space. https://arxiv.org/abs/1201.3026

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