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A. Jenčová

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Preprint Aug 2026

Sufficient positive maps between von Neumann algebras: R\'enyi divergences

We prove recovery theorems for $\alpha$-$z$ R\'enyi divergences under normal unital positive maps between von Neumann algebras. Previous results in this setting required 2-positivity, while recent finite dimensional work showed that this assumption can be relaxed to mere positivity. Our proof uses sufficiency for JW*-s...

A. Jenčová, Lauritz van Luijk · 0 citations

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