Tidlegare gjesteforelesninger og seminarer - Side 86

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.  

Friday seminar by Juha Merliä

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, Westfälische Wilhelms-Universität Münster, 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 Støer (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 på henholdsvis første 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 når vi går over til topologiske rom så 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.

Friday seminar by Dag Undlien (room 3315)

The gas pipeline from the Ormen Lange Field to the terminal at Aukra faced several challenges. First, the terrain was very rugged as the route goes through the Storegga slide area where unprecedented long free spans were to be expected. Secondly, the area was believed to have complicated and strong ocean currents. An oceanographic campaign was started in 1999 and lasted to 2007. The presentation will give some background for the measurements, describe the programme and show some results.