Around homogeneous spaces of complex semisimple quantum groups
- June 7 (Wed) at 14:00 - 16:30, 2023 (JST)
- Mr. Kan Kitamura (Ph.D. Student, Graduate School of Mathematical Sciences, The University of Tokyo)
- Seminar Room #359 (Main Venue)
- via Zoom
- Mizuki Oikawa
Murray and von Neumann initiated the study of operator algebras motivated by the mathematical foundations of quantum physics. Operator algebras give good language to treat quantum symmetries, such as quantum groups. In this talk, I would like to give an overview of this topic first. Then, I discuss the q-deformations of complex semisimple Lie groups. From an operator algebraic viewpoint, we can treat them as "locally compact" quantum groups. Especially, I will focus on its homogenous spaces coming from discrete quantum subgroups with a motivation toward the quantum analog of lattices. Unlike the classical setting, we can obtain a complete classification of its discrete quantum subgroups.
- Kan Kitamura, Discrete quantum subgroups of complex semisimple quantum groups, (2023), arXiv: 2303.14656
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