Analysis Seminar
Unless specified, all seminars are
Wednesday 4-5pm at Room
250.
April 26
Min
Woong Ahn, SUNY at Buffalo
The
error-sum function of Pierce expansions
Abstract: The notion of the
error-sum function was first studied by Ridley and
Petruska in the context of the regular continued
fraction expansion.
The Pierce expansion is another
classical representation of a real
number. In this talk, I will introduce the error-sum function of Pierce expansions
and discuss the basic properties of the function and the fractal property of the graph of the function.
May
3
Daxun Wang, SUNY at Buffalo
Boundary actions of
groups and their C*-algebras
Abstract:
Pure infiniteness of a
C*-algebra plays an important role in the
classification of C*-algebra. In this talk, we will
talk about boundary actions
of some popular groups that arise in geometric group
theory such as right angled Artin groups, right
angled Coxeter groups and graph of groups,
and show that the reduced crossed product
C*-algebras of these boundary actions are purely
infinite. This is a joint work with Xin Ma.
Past
Analysis Seminar