SMS scnews item created by Hannah Bryant at Thu 20 May 2021 1657
Type: Seminar
Modified: Wed 2 Jun 2021 1056; Thu 3 Jun 2021 1445
Distribution: World
Expiry: 3 Jun 2021
Calendar1: 3 Jun 2021 1530-1630
CalLoc1: Quad S227 & Online
CalTitle1: SMRI Seminar: Onn ’Base change and representation growth of arithmetic groups’
Auth: hannahb@ (hbry8683) in SMS-SAML

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


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:

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

(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 to RSVP)

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