Previous events - Page 154

Marcus K. V. Eriksson (Universitetet i Oslo) holder et seminar med tittelen: A valuation model with minimal and maximal constraints for swing options.

Roberto Conti, Universita La Sapienza (Rome), Italy, will give a talk with title: The dark side of the Cuntz algebras

Abstract: We provide an overview of our recent work on the automorphism group of Cuntz algebras and discuss a number of open problems. (Joint work with J.H. Hong and W. Szymanski).

Benjamin Holcblat (Department of Financial Economics, BI) will talk about

A Classical Moment-Based Approach with Bayesian Properties: Econometric Theory and Empirical Evidence from Asset Pricing

Magnus Strandmyr Eide at Department of Geosciences will be defending the thesis: Modeling present and future global shipping emissions, abatement potentials and possible impacts

Doctoral candidate Magnus Strandmyr Eide at Department of Geosciences will give a trial lecture on the given topic: Changes in air quality over the last few decades

Gunther Cornelissen, Utrecht University (The Netherlands) will give a talk with title "Dynamical systems and point counting"

Abstract: Counting the points of a curve over finite fields doesn't determine the curve up to isomorphism; this is analogous to the famous fact that you cannot "hear the shape of a drum". I will show how to remedy this by counting points in a weighted way (namely, using abelian L-series). The method of proof is through the theory of dynamical systems, and - curiously - arose from a study of a quantum statistical mechanical system.  

Johannes Rafael Kühnel at Department of Geosciences will be defending the thesis: Reactive Nitrogen: Transport to and deposition at the high Arctic site Ny-Ålesund, Svalbard  

Doctoral candidate Johannes Rafael Kühnel at Department of Geosciences will give a trial lecture on the given topic: Anthropogenic impact on the global nitrogen cycle: Ecosystem response in relation to climate change

Makoto Yamashita, p.t. University of Copenhagen, will give a talk with title "Tannaka-Krein duality of quantum homogeneous spaces"

Abstract: We study ergodic actions of compact quantum groups on operator algebras  (quantum homogeneous spaces) from the categorical point of view. The language of Rep(G)-module C*-categories gives a reconstruction theorem of quantum homogeneous spaces, which also captures the equivariant Morita equivalence and the equivariant homomorphisms.  For the case of quantum SU(2), the universality of Rep(SUq(2)) allows us to obtain a combinatorial description of quantum homogeneous spaces and their properties. Based on joint work with Kenny De Commer (arXiv:1211.6552, arXiv:1212.3413).  

Professor Erwan Rauwel, University of Tallinn, Tartu College, Estonia

Rama Cont (Imperial College) holder et seminar med tittelen: Functional Ito calculus and functional Kolmogorov equations

Magnus Dahler Norling, UiO, will give a talk with title: The K-theory of some reduced inverse semigroup C*-algebras

Abstract: We use a recent result by Cuntz, Echterhoff and Li about the K-theory of certain reduced C*-crossed products to describe the K-theory of C*_r(S) when S is an inverse semigroup satisfying certain requirements. A result of Milan and Steinberg allows us to show that C*_r(S) is Morita equivalent to a crossed product of the type handled by Cuntz, Echterhoff and Li. We apply the results to graph inverse semigroups and the inverse semigroups of one-dimensional tilings.

Michael Scheuerer will talk about (Institute of Applied Mathematics, Heidelberg University)

Statistical post-processing of weather forecasts: The importance of spatial modeling

Program for the seminar in Logic, Spring 2013

Cand.scient Øyvind Jacobsen ved Farmasøytisk institutt vil forsvare sin avhandling for graden ph.d: Synthesis and Structural Studies of Conformationally Constrained 3_10-Helical Peptides and Potential Aquaporin-4 Ligands.

Førsteamanuensis Luc Rouppe van der Voort, Institutt for teoretisk astrofysikk

Donna Mary Salopek (Uni. South Wales) holder et seminar med tittelen: Stochastic Evolution Equations driven by Liouville Fractional Brownian motion

Benedykt Szozda (Uni. Aarhus) holder et seminar med tittelen: Anticipative extension of the Ito integral

Thomas Jaki (Department of Mathematics and Statistics, Lancaster University) will talk about

Designing multi-arm multi-stage clinical studies

Matthew Sperrin (Department of Mathematics and Statistics, Lancaster University) will talk about

Modelling the effect of interventions on onset and progression of chronic disease

Markus Eckerstorfer at Department of Geosciences will be defending the thesis: Snow avalanches in central Svalbard: A field study of meteorological and topographical triggering factors and geomorphological significance.

Doctoral candidate Markus Eckerstorfer at Department of Geosciences will give a trial lecture on the given topic: The role of snow and its distribution patterns for low-land and mountain permafrost

Fred Shultz, Wellesley College, USA will give a talk with title "Decomposing separable states".

This is the first in a joint seminar series organised by the Operator Algebra group (UiO), Several Complex Variable group (UiO) and the CAS group.  The plan is to have seminars every other week.  

Abstract: This talk will begin with a brief introduction to entanglement and its applications, since that motivates the mathematics to be discussed.  In the title of this talk, a state is a positive linear functional on the tensor product of the algebras of m x m and n x n complex matrices.  Such a state is separable if it is a convex combination of product states. An interesting open problem is to give a useful criterion for a state to be separable. A related problem is to give a systematic way to find a decomposition of a separable state into a convex combination of product states.  This talk will describe such a decomposition for a class of separable states that is of both physical and mathematical interest.  This decomposition is also applicable to a class of completely positive maps (which correspond to certain quantum channels). This is joint work with Erik Alfsen.