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Separated Pairs of Submodules in Hilbert $C^*$-modules

Separated Pairs of Submodules in Hilbert $C^*$-modules

We introduce the notion of the separated pair of closed submodules in the setting of Hilbert $C^*$-modules. We demonstrate that even in the case of Hilbert spaces this concept has several nice characterizations enriching the theory of separated pairs of subspaces in Hilbert spaces. Let $\mathscr H$ and $\mathscr K$ …