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Michiya Mori (University of Tokyo): Continuous coexistency preservers on effect algebras 



Tuesday, 11. February 2020, 10:00  11:00


The effect algebra is the collection of positive semidefinite, nonexpansive linear operators on a fixed complex Hilbert space. In this talk, we consider mappings on the effect algebra that preserve the binary relation called coexistency in both directions. I will explain the general form of such mappings under the additional assumption of continuity and finite dimensionality, but without assuming bijectivity. This is joint work with Peter Semrl. 
Location : Bolyai Intézet, I. emelet, Riesz terem, Aradi vértanúk tere 1., Szeged 
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