Tidligere arrangementer - Side 98

Bas Jordans will give a talk with title " Random walks on discrete quantum groups: convergence to the boundary"

Abstract:

For classical random walks there exist two boundaries: the Poisson boundary and the Martin boundary. The relation between these two boundaries is described by the so-called "convergence to the boundary". For random walks on discrete quantum groups both the Poisson boundary and Martin boundary are defined and a non-commutative analogue of convergence to the boundary can be formulated. However, no proof is known for a such a theorem. In the first part of the talk we will discuss the classical and quantum version of convergence to the boundary, explain how these are related and give an overview of what is known in general for the quantum case. In the second part we will discuss the boundary convergence for SUq(2) and for monoidally equivalent quantum groups.

 

Friday seminar by Indr? ?liobait?

J?rgen Vold Rennemo (Oxford), gives the Seminar in Algebra and Algebraic Geometry:

Gauge-dualitet

Francisco Jos¨¦ Bullejos Carrillo (post doc, AQUA)

 

Key Words: Saharan aerosol nutrient inputs; UVR; phyto-zooplankton coupling

The School of Pharmacy and Centre for Integrative Microbial Evolution (CIME) invites you to the CIME International Winter Symposium held in conjunction with an honorary symposium for professor Anne-Brit Kolst? who retired from her position at the School of Pharmacy July 31st 2015. Please register for lunch by email to: aloechen@farmasi.uio.no

Signe Riemer-S?rensen, Post-Doctoral researcher, ITA

By Sigrun Jonasdottir

Raoul Wolf, PhD student AQUA, IBV

Lars A. Buchhave, Postdoc, Centre for Star and Planet Formation, University of Copenhagen. 

Kristian Ranestad, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Variety of sums of powers of bihomogeneous forms

The European Development Network Conference 2015 takes place in Oslo, 3-4 December 2015.

Peter Lumsdaine, Stockholms Universitet, vil gi to seminarinnlegg, det ene p? logikkseminaret.

Piotr Soltan (University of Warsaw) will give a talk with title: Subgroups of quantum groups, the center and inner automorphisms

Tobias Erhardt (Technische Universit?t, M¨¹nchen) will give a seminar in the lunch area, 8th floor N.H. Abel's House at 14:15 November 24th.

Arnaud Brothier, Vanderbilt University (USA) will give a talk with title: Analytic properties for subfactors

Abstract:

I will discuss analytic properties for groups and their generalizations to subfactors, standard invariants, and certain tensor categories.

I will present a class of subfactor planar algebras that are constructed with a group acting on a bipartite graph.

I will show that if the group satisfies a given approximation property (such as amenability, Haagerup property, or weak amenability), then the subfactor planar algebra satisfies it as well.

I will exhibit an infinite family of subfactor planar algebras with non-integer index that are non-amenable, have the Haagerup property, and have the complete metric approximation property.

Paul Kr¨¹hner (TU Wien) gives a lecture with the title: Time change equations for L¨¦vy type processes

CEES Extra seminar by Laura Nu?o de la Rosa

Rough paths and rough partial differential equations

Friday seminar by Marius Roesti from University of Basel (Switzerland) and University of British Columbia (Canada)

Robert Jenssen (University of Troms?) will give a seminar in the lunch area, 8th floor N.H. Abel's House at 14:15 November 10th.

The Tuesday statistics seminar on November 10th at the Mathematics department is unfortunately canceled.

PIV investigation of the flow structures developing in a parallel valves Diesel engine cylinder during the intake stroke.  

 

In this talk I will present the Real algebraic K-theory construction of Hesselholt and Madsen, and discuss some on-going joint work with Ib Madsen. Real algebraic K-theory is a functor that to a ring A with anti-involution associates a genuine C_2-equivariant spectrum KR(A). Here C_2 denotes the cyclic group of order two. The underlying spectrum of KR(A) has the homotopy type of K(A), the usual K-theory space of A in the sense of Quillen, and the C_2-fixed point spectrum is weakly equivalent to the Hermitian K-theory of A. I will talk about generalizations of known theorems for algebraic K-theory to KR, including delooping results, "fundamental" theorems and group completion.

The issue of inequality has moved to the top of the policy agenda around the world. Many see the Welfare State, the most important bulwark against the increase in inequality, as under threat. What do we see as the pillars of the 21st Century welfare state?

Kristian Ranestad, Professor, Mathematics Department, UiO