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Our seminar runs on Tuesdays from 13:00 to 14:00.
Contact: Matteo Pagliero - pagliero@imada.sdu.dk
Fall 2026
29/09/2026: Matteo Pagliero (SDU), in the IMADA Seminar Room
Title: Selfless inclusions from crossed products by PHP groups
Abstract: A C*-probability space is a nontrivial C*-algebra with a distinguished GNS-faithful state. Inspired by work of Dykema, Rørdam and Popa on reduced free products, Robert has recently introduced a class of C*-probability spaces called selfless. Selflessness is very useful to obtain regularity properties of simple C*-algebras, such as strict comparison of positive elements, and pure infiniteness. Selfless inclusions of C*-probability spaces have later been introduced by Hayes, Kunnawalkam Elayavalli, Patchell and Robert as a stronger notion of selflessness relative to a C*-probability subspace. In this talk, I will present some very recent work with Flores, Klisse and Ó Cobhthaigh, where we define a dynamical property of group actions on C*-algebras implying that the reduced group C*-algebra inclusion inside the reduced crossed product is selfless, and give some examples.
6/10/2026: Jamie Gabe (SDU), in the IMADA Seminar Room
Title: TBA
Abstract: TBA
13/10/2026: No Seminar due to Potato Holiday
20/10/2026: TBA, in the IMADA Seminar Room
Title: TBA
Abstract: TBA
27/10/2026: TBA, in the IMADA Conference Room
Title: TBA
Abstract: TBA
10/11/2026: Lukas Paul Achatius Galke Poech (SDU), in the IMADA Seminar Room
Title: TBA
Abstract: TBA
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