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This MO question "Property $\Gamma$ in terms of correspondences" led us to answer two old open problems and to push further a third more recent result: Jon Bannon, Amine Marrakchi, Narutaka Ozawa. Full factors and co-amenable inclusions, arxiv/1903.05395. Thanks MO!!!


Ilya Bogdanov has answered my question Graphs with only disjoint perfect matchings on certain coloring in graphs, that emerged through research in quantum physics. This answer has inspired quite a bit of research: Quantum Experiments and Graphs (arXiv - cited Bogdanov's MO answer) Quantum experiments and graphs II (arXiv) Quantum experiments and graphs. ...

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