Quasi-splitting subspaces in a pre-Hilbe
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David Buhagiar; Emmanuel Chetcuti
📂
Article
📅
2007
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John Wiley and Sons
🌐
English
⚖ 126 KB
## Abstract Let __S__ be a pre‐Hilbert space. Two classes of closed subspaces of __S__ that can naturally replace the lattice of projections in a Hilbert space are __E__ (__S__) and __F__ (__S__), the classes of splitting subspaces and orthogonally closed subspaces of __S__ respectively. It is well