Tidligere arrangementer - Side 129

Simen Rustad (UiO) will give a talk with title  "Construction of Bost-Connes type systems for function fields".

 

Abstract: I will try to indicate how Benoit Jacob's construction of a Bost-Connes  type system for function fields fits into a more general framework.  

Friday seminar by Jon Slate

Jan-Erik Solheim, Institutt for teoretisk astrofysikk, UiO

Bora Yalkinoglu will give a talk entitled: Introduction to p-adic Bost-Connes systems.

Abstract: In this talk we want to give a gentle introduction into the recently emerging theory of p-adic Bost-Connes systems. In the first part of the talk, after reviewing the necessary background from p-adic analysis and number theory, we will explain recent work of Connes and Consani on certain p-adic representations of the classical BC-system. In the second part of the talk we will discuss recent work on generalizations of the work of Connes and Consani and, further, point out several open problems for further research.  

Oliver Menokeu Pamen, CMA, holder et seminar med tittelen: Computing Greeks without derivatives

Friday seminar by Juha Merli?

Dan Henrik Sekse, Institutt for teoretisk astrofysikk, UiO

Arne Bang Huseby (Matematisk Institutt, Universitetet i Oslo) skal snakke om

A framework for multi-reservoir production optimization

 

Thomas Timmermann, Westf?lische Wilhelms-Universit?t M¨¹nster, Germany, will give a talk with title "Towards the dynamical quantum group SU_q(2) on the level of operator algebras"

Friday seminar by Bas Kooijman

Mats Carlsson, Institutt for teoretisk astrofysikk, UiO

Nathalie St?er (Matematisk Institutt, Universitetet i Oslo) skal snakke om

Reuse of controls in nested case-control designs with application to a study of prostate cancer and vitamin D

Friday seminar by Jonathan Wright

Bhavna Rathore, Institutt for teoretisk astrofysikk, UiO

Friday seminar by Lorenzo Ciannelli

Marit Sandstad, Institutt for teoretisk astrofysikk, UiO

Fred Shultz, Wellesley College (USA) will give a talk with title "Affine automorphisms of the convex set of separable states, and decompositions of separable states".

For simplisielle mengder X og Y gir projeksjonene X x Y -> X og X x Y -> Y fra produktet ned p? henholdsvis f?rste og annen faktor opphav til en simplisiell avbildning f : Sd( X x Y ) -> Sd X x Sd Y fra den normale oppdelingen av produktet til produktet av oppdelingene. Vi viser at for endelige simplisielle mengder X og Y er denne en simpel avbildning, det vil si at n?r vi g?r over til topologiske rom s? er punktinversene |f|^{-1}(p), p element i |Y|, kontraktible. 

Sjur Westgaard (NTNU) skal snakke om

Modelling and forecasting electricity price risk using volatility adjusted quantile regression

Friday seminar by Neil Roberts

Unni Fuskeland, Institutt for teoretisk astrofysikk, UiO

Gjesteforelesning ved professor Paul A. Wender.

In nature, groups of individuals organize globally using only local information. For instance, in a school of fish, there are no external forces to coordinate the group, no leader to guide them. Several mathematical models have been proposed to describe self-organization. In this talk, we will consider two of the most famous models; the Keller-Segel model for bacterial chemotaxis and the Cucker-Smale model for flocking. The emphasis will be on recent mathematical results and remaining open questions. Starting from the microscopic description on particle level, we will discuss the derivation of mesoscopic and macroscopic models at the continuum level. Since the motivation for deriving continuum models is largely numerical, we will also discuss distinct numerical challenges with the resulting models.