A property of conditional expectation
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DOI: 10.1007/s11117-018-0581-6
Abstract: Let $$({\mathcal {M}},\tau )$$(M,τ) be a semi-finite von Neumann algebra, $$({\mathcal {N}},\tau |_{{\mathcal {N}}})$$(N,τ|N) be a semi-finite von Neumann subalgebra and $${\mathcal {E}}:\;{\mathcal {M}}\rightarrow {\mathcal {N}}$$E:M→N be a conditional expectation which leaves $$\tau $$τ invariant.… read more here.
Keywords: conditional expectation; property conditional; expectation;