SMRI Seminar: Onn -- Base change and representation growth of arithmetic groups

***REMINDER TO REGISTER - SEMINAR TODAY***
***ON CAMPUS LOCATION UPDATED - QUAD S225***

SMRI Seminar: 
’Base change and representation growth of arithmetic groups’
Uri Onn (Australian National University)

When: Thursday Jun 3, 2021 03:30 PM-4:30 PM (AEST)
**UPDATED**Where: Quad S225 (University of Sydney staff, students & affiliates only) & 
Via Zoom
Register Here: 
https://uni-sydney.zoom.us/meeting/register/tZUodO6srTIoGNUInl06dFreSzDSDimsyJGW

Abstract: A group is said to have polynomial representation growth if the sequence 
enumerating the isomorphism classes of finite dimensional irreducible representations 
according to their dimension is polynomially bounded. The representation zeta 
function of such group is the associated Dirichlet generating series. In this talk I 
will focus on representation zeta functions of arithmetic groups and their 
properties. I will explain the ideas behind a proof of a variant of the 
Larsen-Lubotzky conjecture on the representation growth of arithmetic lattices in 
high rank semisimple Lie groups (joint with Nir Avni, Benjamin Klopsch and 
Christopher Voll) and analogous results for arithmetic groups of type A_2 in 
positive characteristic (joint with Amritanshu Prasad and Pooja Singla).

Biography: Uri Onn is an A/Prof working at the Mathematical Science Institute at the 
ANU. He graduated from the Technion (Haifa) and continued to postdoctoral positions 
in Amsterdam, Paris, Mumbai and Jerusalem. He then became a faculty member at 
Ben-Gurion University until 2017 when he moved to the Australian National 
University. He takes keen interest in math and jazz.

Note: This seminar will be recorded (participants only when asking questions) and 
uploaded to the SMRI YouTube Channel 
https://www.youtube.com/c/SydneyMathematicalResearchInstituteSMRI


(University of Sydney staff, students & affiliates only are also invited to join us for 
afternoon tea on the SMRI terrace at 3pm, prior to the seminar held in person in 
Quad 225 - please note in your registration or email smri.admin@sydney.edu.au to RSVP)