You are cordially invited to the Analysis Seminar organized by the Department of Mathematics.<\/p>\n
Speaker: Aurelian Gheondea (Bilkent)
\n“Partially Positive Semidefinite Maps on *-Semigroupoids.”<\/p>\n
Abstract: 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.<\/p>\n
Date: Wednesday, October 4, 2023
\nTime: 13:45 \u2013 14:45
\nPlace: Mathematics Seminar Room, SA \u2013 141<\/p>\n","protected":false},"excerpt":{"rendered":"
You are cordially invited to the Analysis Seminar organized by the Department of Mathematics. Speaker: Aurelian Gheondea (Bilkent) “Partially Positive Semidefinite Maps on *-Semigroupoids.” Abstract: 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 [\u2026] <\/p>\n