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04 Ekim 2023, 13:45 
Bilkent Üniversitesi Analiz SeminerleriPartially Positive Semidefinite Maps on *-Semigroupoids Aurelian Gheondea Motivated by Cuntz-Krieger-Toeplitz systems associated with undirected graphs and representations of groupoids, we obtain a generalization of the Sz-Nagy’s Dilation Theorem for operator-valued partially positive semidefinite maps on *-semigroupoids with the unit, with varying degrees of aggregation, firstly by *-representations with unbounded operators and then we characterize the existence of the corresponding *-representations by bounded operators. SA141 Mathematics Seminar Room botan 29.09.2023 |
