Tidlegare gjesteforelesninger og seminarer - Side 58
Prof. Dr. Alois Gisler (ETH Zurich, RiskLab Switzerland) holds a seminar with the title "On the Development of the Swiss Solvency Test"
Prof. Dr. Alois Gisler (ETH Zurich, RiskLab Switzerland) holds a seminar with the title "The Reserve Risk of the Chain-Ladder Reserving Method from a New Perspective"
Réamonn Ó Buachalla (IMPAN) will give a talk with title: Noncommutative Kähler structures on quantum homogeneous spaces
Abstract:
Building on the definition of a noncommutative complex structure for a general algebra A, I will introduce the notion of a noncommutative Kähler structure for A. In the special case where A is a quantum homogeneous space, I show that many of the fundamental results of classical Kähler geometry follow from the existence of such a structure: Hodge decomposition, Serre duality, the Hard Lefschetz theorem, the Kähler identities, and collapse of the Frölicher spectral sequence at the first page. We then apply these results to Heckenberger and Kolb's differential calculus for quantum projective space, and show that they have cohomology groups of at least classical dimension. Time permitting, I will also discuss the relationship of this work to Connes proposal to study positive Hochschild cocycles as a starting point for noncommutative complex geometry, and Fröchlich, Grandjean, and Recknagel's definition of a Kähler spectral tuple.
CEES Extra Seminar by Masahito Tsuboi from Uppsala University.
Eva Leu (Akvaplan-NIVA)
Eduard Ortega, NTNU, will give a talk with title: Cuntz-Krieger uniqueness theorems
Abstract: I will make a little survey about Cuntz-Krieger uniqueness theorems and how they help to the study of the ideal structure of the rings to which one can apply them. In certain classes of (C*-)algebras this is described as topologically freeness or condition (L). However they are important classes of rings for which are not known Cuntz-Krieger type theorems. I will present a class of rings, that generalize Leavitt path algebras and Passman crossed products, for which I can totally characterize the Cuntz-Krieger uniqueness theorem.
Friday seminar by Vadim B. Fedorov from University of Alaska Fairbanks
Ann-Cecilie Larsen, Post.doc., Dep. of Physics/SAFE, University of Oslo
Parameter-robust finite element discretization and its preconditioning for Biot's consolidation model in poroelasticity
Erik Bédos will give a talk with title: On the Fourier-Stieltjes algebra of a C*-dynamical system
Abstract: When G is a discrete group, its Fourier-Stieltjes algebra B(G) may be described as the set of coefficient functions associated with unitary representations of G on Hilbert spaces. In a similar way, if Sigma=(A, G, alpha, sigma) is a unital discrete twisted C*-dynamical system, one may let the Fourier-Stieltjes algebra B(Sigma) consist of the functions from G x A into A that arise as coefficient functions of equivariant representations of Sigma on Hilbert A-modules. We will explain how B(Sigma) may be organized as an algebra with conjugation, and show that it may be represented as completely bounded multipliers on the full crossed product C*(Sigma). (This is also known to be true for the reduced crossed product). This is part of an ongoing project with Roberto Conti (Rome).
Carl Henrik Gørbitz, Professor - Kjemisk institutt
Arvid Siqveland, Høgskolen i Buskerud og Vestfold, gives the Seminar in Algebra and Algebraic Geometry:
Modular curves V
These are the fifth and and the sixth lectures given by Anders Hansen (Cambridge Univ. and UiO) on Compressed sensing - Theory and Applications.
These are the third and fourth lectures given by Anders Hansen (Cambridge Univ. and UiO) on Compressed sensing - Theory and Applications.
Friday seminar by Frietson Galis from Naturalis Biodiversity Center, The Netherlands
Signe Riemer-Sørensen, ITA
Professor Berit Smestad Paulsen retired from her position at the School of Pharmacy December 31st 2014. The School of Pharmacy will organize a scientific symposium in order to honor and appreciate her. The symposium will be organized on Friday March 20th 2015.
Fredrik Meyer, UiO, gives the Seminar in Algebra and Algebraic Geometry:
Modular curves IV
Olav Breivik (Dept. of Math., UiO ) gives a seminar in room 107, 1st floor N.H. Abels House at 14:15 March 17th: Bycatch of juvenile cod in the Barents Sea shrimp fishery
Katrine Borgå, AQUA
Friday seminar by Miriam Maas from the National Institute for Public Health and the Environment, The Netherlands.
Line Drube, German Aerospace Center Institute of Planetary Research
Arne B. Sletsjøe, UiO, gives the Seminar in Algebra and Algebraic Geometry:
Modular curves III
Sam Sanders, Ghent and Munich, will give a lecture with the tittle
On the contingency of predicativism.