Tidligere arrangementer - Side 107

Carsten L¨¹tken, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Modular curves VIII

The Skolem Lecture is an annual event in honor of the Norwegian mathematician and logician Thoralf Skolem.

This years Skolem Lecturer will be

Michael Rathjen, The University of Leeds:

"On relating strong type theories and set theories"

Hakon Dahle, Research Fellow , ITA

 Daniel Hitchcock (PhD student, AQUA)

Roberto Conti (La Sapienza, Rome) will give a talk with title "C*-algebras and Fourier theory"

Friday Seminar by Juan Bonachela from the University of Strathclyde (Scotland)

Gregal Vissers, Postdoctoral Fellow , ITA

Robert Yuncken (Univ. Clermont-Ferrand II, France) will give a talk with title: A groupoid approach to pseudodifferential operators

Abstract: Connes introduced the "tangent groupoid" of a manifold as a geometric device for linking a classical pseudodifferential operator to its symbol, yielding a novel proof of the Atiyah-Singer index theorem.  Since then, numerous variations on the tangent groupoid have been produced, each adapted to a different class of pseudodifferential operators.  In this talk we will consider the reverse problem: associating to a given tangent groupoid a pseudodifferential calculus.  We shall show that the kernels of classical pseudodifferential operators are precisely the essentially homogeneous fibrewise distributions on Connes' tangent groupoid.  This leads to a natural pseudodifferential calculus of subelliptic type on a manifold with a filtration on its Lie algebra of vector fields.

P? Partnerforums 5. seminar i rekken om arbeids- og organisasjonsformer spurte vi om nettverksorganisering er egnet i staten.

Using population-based data linkage to investigate MS epidemiology: recent findings from British Columbia, Canada.

Fredrik Meyer, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Modular curves VII

CEES Extra Seminar by Bernard Wood from The George Washington University

Comments on the Galilean limits of Maxwell's equations

Workshop in the European Strains project.

 Oda Bj?rke, IBV

Convex relaxation, graph cut and continuous max-flow algorithms for image processing and computer vision.

Friday seminar by Michael Crusoe from Michigan State University (US)

Pietro De Poi (Udine), gives the Seminar in Algebra and Algebraic Geometry:

A Severi type theorem on surfaces in P^6

Friday seminar by Patrick Kestemont from the University of Namur, Belgium

Anja R?yne, Postdoc at Physics of Geological Processes, Department of Physics, UiO

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

Modular curves VI

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"

R¨¦amonn ? Buachalla (IMPAN) will give a talk with title: Noncommutative K?hler 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 K?hler structure for A. In the special case where A is a quantum homogeneous space, I show that many of the fundamental results of classical K?hler geometry follow from the existence of such a structure: Hodge decomposition, Serre duality, the Hard Lefschetz theorem, the K?hler identities, and collapse of the Fr?licher 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 Fr?chlich, Grandjean, and Recknagel's definition of a K?hler spectral tuple.