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calkin spaces 1disjointness preserving maps 1operator algebras 1positive isometries 1von neumann algebras 1

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math.FA2026

Disjointness-preserving mappings on Calkin operator spaces and positive isometries

Kai Fang, Jinghao Huang, Karimbergen Kudaybergenov +1

The paper proves that any order‑measure continuous, disjointness‑preserving map between certain Calkin operator spaces over an atomless, finite semifinite von Neumann algebra must…