MiniLecture Series: Dynamics of horospherical subgroups of groups acting on trees

Date:
08./09./10.05.2019

Speaker:
Vladimir Finkelshtein

Time:
08.05.: 15:45
09.05.: 11:30
10.05.: 09:45 
This MiniLecture Series will consist of three talks of 50 minutes each.
Abstract: In the series of three talks I will discuss unipotent dynamics in a nonlinear world. In the first talk, I will review some classical results in linear groups of rank one; the main example being  the action of the unipotent group U < SL(2,R) on the homogeneous space SL(2,R)/SL(2,Z). The second talk will focus on introducing nonlinear analogues of all the players. The role of SL(2,R) will be played by the group of tree automorphisms. I will discuss lattices in it and prove orbit classification. In the third talk, I will explain measure classification and some equidistribution results in the nonlinear setting. This is joint work with C.Ciobotaru and C.Sert.

Place:
08.05.: 1.067 (20.30)
09.05.: 1.011 (UG) (20.30)
10.05.: 2.059 (20.30)