Tidlegare gjesteforelesninger og seminarer - Side 59

Franz Luef (NTNU) will give  a talk with title "Sigma-models solitons on noncommutative spaces"

Abstract: Results from time-frequency analysis and Gabor analysis allow the construction of new classes of sigma-model solitons over the Moyal plane and over noncommutative tori, taken as source spaces, with a target space made of two points. A natural action functional leads to self-duality equations for projections in the source algebra. Solutions, having non-trivial topological content, are constructed via suitable Morita duality bimodules. This is joint work with L. Dabrowski and G. Landi.

John Dagsvik ( Statistics Norway ) gives a seminar in room 107, 1st floor N.H. Abels House at 14:15 March 10th:  How Does the Temperature Vary over Time?  Evidence on the Stationary and Fractal  Nature of Temperature Fluctuations

Benjamin Racine, Postdoctoral Fellow , ITA

Bartosz K. Kwaśniewski (University of Southern Denmark, Odense) will talk on: Topological aperiodicity for product systems of C*-correspondences

Abstract:We introduce a semigroup of multivalued maps dual to a product system of $C^*$-correspondences over an Ore semigroup. Under a certain aperiodicity condition on the dual semigroup we obtain a uniqueness theorem and a simplicity criterion for the associated Cuntz-Pimsner algebra. These results generalize similar statements for crossed products by groups (R. J. Archbold, J. S. Spielberg) and Exel’s crossed products (R. Exel, A. Vershik). They also give interesting conditions for topological higher rank graphs, and apply to the new Cuntz $C^*$-algebra $\mathcal{Q}_\mathbb{N}$ arising from the `$ax+b$'-semigroup over natural numbers. (Based on joint work with Wojciech Szymański.)

The talk will focus on "Nanoparticle interaction with early human placenta", an upcoming topic in reproductive toxicology.

Friday seminar by Philipp Mitteröcker from Universität Wien

Geir Ellingsrud, UiO, gives the Seminar in Algebra and Algebraic Geometry:

Modular curves I

Adam P.W. Sørensen will talk on Nuclear dimension of UCT Kirchberg algebras

Abstract: Nuclear Dimension is a regularity property for C*-algebras that is based on the type of properties currently being taught in Topics in Operator Algebras. We will go over the definition and motivation and discuss known results.

Kasper Christensen ( Nofima, Ås and  Aarhus university ) gives a seminar in room 107, 1st floor N.H. Abels House at 14:15 February 24th:  Mining for new product ideas.

IBV Department and CEES Extra seminar by Darren E. Irwin from Beaty Biodiversity Museum & University of British Columbia

 Asbjørn Vøllestad, CEES

CEES Extra seminar by David Righton & Julian Metcalfe from Cefas.

Stephanie C. Werner, Centre of Earth Evolution and Dynamics, Department of Geosciences, UiO

Atanas Iliev, Seoul National University, gives the Seminar in Algebra and Algebraic Geometry:

Fano manifolds - old and new

Eksperter og forskere fra Tsjekkia, Irland, England og Norge er invitert for å snakke om Gregor Mendel, nye tanker om Mendel vs. Darwin, livets hemmelighet - og mer.

Program for the seminar in Mathematical Logic spring 2015

Makoto Yamashita, Ochanomizu University, will give a talk with title: Drinfeld center and representation theory for monoidal categories

Abstract: Motivated by the recently found relation between central completely positive multipliers and the spherical unitary representations of the Drinfeld double for discrete quantum groups, we construct and analyze the representations of fusion algebra of rigid C*-tensor category from the unitary half-braidings. Through the correspondence of Drinfeld center and the generalized Longo-Rehren construction in subfactor theory, these representations are also related to Popa’s theory of correspondences and subfactors. This talk is based on joint work with Sergey Neshveyev.

Håvard Rue ( Dept. of math., NTNU) gives a seminar in room 107, 1st floor N.H. Abels House at 14:15 February 10th: Penalising model component complexity: A principled practical approach to constructing priors

Friday seminar by Andreas Hejnol, Sars International Centre for Marine Molecular Biology

Jørn Harald Hurum, Associate Professor - Norwegian Center for Paleontology

Helge Brunborg (Statistisk sentralbyrå)  holder et seminar i rom 107, 1. etasje N.H. Abels Hus kl. 14:15 tirsdag  3. februar: Hva skjer med verdens befolkningsutvikling?

Per Åberg, Universitetet i Göteborg