References
- Pacific J. Math. v.15 Contractive projections on an L₁-space R.G. Douglas
- Proceedings of the Royal Soc. fo Edinburgh v.118A localising sets for sigma-algebras and related point transformations A.Lambert
- Proceedings of the American Math. Soc. v.123 no.3 Descriptions of conditional expectations induced by non-measure preserving transformations A.Lambert;B.M. Weinstock
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A Hilbert
$T^*$ -module view of some spaces of operators related to probabilistic conditional expectation, tp appear in Quaestiones Mathematicae A. Lambert