Events for 04/03/2019 from all calendars

Number Theory Seminar

Time: 1:45PM - 2:45PM

Location: BLOC 220

Speaker: Wei-Cheng Huang, Texas A&M University

Title: A t-motivic interpretation of shuffle relations for multizeta values

Abstract: Thakur showed that a product of two Carlitz zeta values, with weights r and s, can be expressed as an F_p-linear combination of single and double zeta values of weight equal to r+s where F_p is the finite field of p elements and p is a prime number. Such an expression is called shuffle relation by Thakur. Fixing positive integers r, s, we construct a t-module E. To determine whether an (r+s)-tuple C in F_q(\theta)^{r+s} gives a shuffle relation, we relate it to the F_q[t]-torsion property of the integral point v_C in the t-module constructed with respect to the given (r+s)-tuple C. We also provide an effective criterion for deciding the F_q[t]-torsion property of the point v_C.

URL: Event link

Noncommutative Geometry Seminar

Time: 2:00PM - 3:00PM

Location: BLOC 628

Speaker: Stuart White, University of Glasgow

Title: Simple amenable C*-algebras

Abstract: I’ll discuss recent developments in the structure and classification of simple amenable C*-algebras: how do we recognise C*-algebras which should be classified, and once we’ve found them, how should they be classified? New results will be based on joint work with Castillejos, Evington, Tikuisis and Winter, and with Carrion, Gabe, Schafhauser and Tikuisis.