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Noncommutative Geometry and Topology in Prague
Braided quantum symmetries of graph C*-algebras
Speaker’s name:
Suvrajit Bhattacharjee
Speaker’s affiliation:
Charles University
Place:
This talk will take place in the blue seminar room, back building, Žitná 25.
It will also be broadcast on Zoom:
https://cesnet.zoom.us/j/91975183920?pwd=SGdlRUhLS21HUnVFTXBKcE1vYXlrQT09
Meeting ID: 919 7518 3920
Passcode: 102707
It will also be broadcast on Zoom:
https://cesnet.zoom.us/j/91975183920?pwd=SGdlRUhLS21HUnVFTXBKcE1vYXlrQT09
Meeting ID: 919 7518 3920
Passcode: 102707
Date:
Tuesday, 5. April 2022 - 16:00 to 17:00
Abstract:
A braided compact quantum group (over \mathbb{T}) is, roughly speaking, a “compact quantum group” object in the category of \mathbb{T}-C*-algebras equipped with a twisted monoidal structure. In this talk, we shall explain the existence of a universal braided compact quantum group acting on a graph C*-algebra in the category mentioned above. Time permitting, we shall sketch the proof, constructing along the way a braided analogue of the free unitary quantum group. Finally, as an example, we shall compute this universal braided compact quantum group for the Cuntz algebra.