Previous events - Page 155

Time and place: , NHAbels hus, B71

Magnus Landstad (NTNU) will give a talk with title: Exotic group C*-algebras and noncommutative duality.

Abstract: It  has long been known that for a (non-amenable) locally compact group G there are many C*-algebras between the full and reduced group C*-algebra. First I will discuss to what extent these intermediate algebras can be called group C*-algebras. Then I will look at algebras between the full and reduced crossed product, and the various types of coactions (full, maximal, normal) a group can have. To make arguments a little simpler, we shall assume G to be discrete.

Time and place: , Auditorium 1, Geologibygningen

Okwudili Chuks Orji at Department of Geosciences will be defending the thesis: Sea surface wave heights estimation from dual-sensor towed streamer for the degree of Ph.D.

Time and place: , Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Håkon Dahle, forsker, Institutt for teoretisk astrofysikk.

Time and place: , B 71 NHA

Abstract: In groundbreaking work Thomason establishes a fundamental comparison between Bott-inverted algebraic K-theory and étale K-theory with finite coefficients. Over the complex numbers, Walker has shown how to deduce Thomason's theorem using a semi-topological K-homology theory. In joint work with J. Hornbostel we establish an equivariant generalization of Walker's Fundamental Comparison Theorem and use it to deduce the equivariant version of Thomason's theorem for complex varieties with action by a finite group. 

Time and place: , B1036

Salvador Ortiz-Latorre, EMMOS/CMA, holder et seminar med tittelen: A second order approximation of the continuous time filtering problem

Time and place: , Auditorium 1, Geologibygningen

Cornelia Roffeis at Department of Geosciences will be defending the thesis: U-Pb ID-TIMS geochronology and evolution of Caledonian Nappes in southern Norway for the degree of Ph.D.

Time and place: , Auditorium 1, Geologibygningen

Nora Jennifer Schneevoigt at Department of Geosciences will be defending the thesis: Remote sensing in geomorphological and glaciological research for the degree of Ph.D.

Time and place: , Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Claus Madsen, senior advisor at the European Southern Observatory (ESO).

Time and place: , NHA, seminarrom B71

Yoshiko Ogata, University of Tokyo, will give a talk with title: Approximating macroscopic observables in quantum spin systems with commuting matrices

Abstract: Macroscopic observables in a quantum spin system are spatial means of local observables in a UHF algebra. One of their properties is that they commute asymptotically as the system size goes to infinity. It is not true that any given set of asymptotically commuting matrices can be approximated by commuting ones in the norm topology. The main statement of this talk is that this is true for macroscopic observables.  

Time and place: , Lille fys aud, The Physics Building

Silicon tracking  detectors and physics analysis with the ATLAS experiment at the LHC

Time and place: , Store fys aud, The Physics Building

Silicon tracking  detectors and physics analysis with the ATLAS experiment at the LHC

Time and place: , Auditorium 4, Vilhelm Bjerknes hus

Bin Yu (Departments of Statistics and Electrical Engineering & Computer Science, UC Berkeley) will talk about

Spectral clustering and high-dim stochastic block model for undirected and directed graphs  

 

Time and place: , Lille fys aud, The Physics Building

Silicon tracking  detectors and physics analysis with the ATLAS experiment at the LHC

Time and place: , Lille fys aud, The Physics Building

Silicon tracking  detectors and physics analysis with the ATLAS experiment at the LHC

Time and place: , Lille fys aud, The Physics Building

Silicon tracking  detectors and physics analysis with the ATLAS experiment at the LHC

Time and place: , Department of informatics, Ole-Johan Dahls building

Passwords^12 is held at IfI during 3-5 December 2012. This is the only conference of its kind in the world, focusing ONLY on passwords and PIN codes in all forms, shapes and sizes.

Time and place: , Auditorium 1, Geologibygningen

Alban Jean-Rene Souche at Department of Geosciences will be defending the thesis: Thermal evolution in sedimentary basins above large shear zones and detachments for the degree of Ph.D.

Time and place: , Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Christine Lindstrøm, førsteamanuensis i naturfag, Høgskolen i Oslo og Akershus.

Time and place: , Auditorium 2, Kristine Bonnevies hus (Biology building)

The seminar on the slime mold Dictyostelium discoideum will be held by Dr Monica Hagedorn.

Dr Monica Hagedorn is a distinguished researcher from Bernhard Nocht Institute for Tropical Medicine, Hamburg, Germany. She has several publications describing how the social amoebae D. discoideum reveal new knowledge in infectious diseases.

Time and place: , NHA, seminarrom B71

Jyotishman Bhowmick, UiO, will give a talk with title: Deformation of operator algebras by Borel cocycles

 

Abstract:Given a coaction of a locally compact group on a C^* algebra and fixing a cocycle on G, we discuss a method to deform A into another C^* algebra, thus generalizing  the works of Kasprzak, Yamashita and Rieffel. This is a joint work with S. Neshveyev and A.S. Sangha.

Time and place: , B1036

Krzystzof Paczka, CMA, holder et seminar med tittelen: G-Lévy processes: Ito calculus, jumps diffusions and robust optimal control

Time and place: , Auditorium 4, Vilhelm Bjerknes hus

Fabio Divino (University of Molise, Italy) will talk about

MCMC computation for Bayesian modeling of presence-only data

Time and place: , Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Yabebal Fantaye, post doc. ved Institutt for teoretisk astrofysikk fra november.

Time and place: , Auditorium 1, Geologibygningen

Jaqueline Reber at Department of Geosciences will be defending the thesis: Sheath folds in simple shear: An analytical and experimental study for the degree of Ph.D.

Time and place: , NHA, seminarrom B71

Stuart White (University of Glasgow, UK) will talk on "Z-stability and central sequences".

Abstract: Over recent years, tensorial absorption of the Jiang-Su algebra $\mathcal Z$ has become a particularly prominent property of $C^*$-algebras. In this talk, I'll explain what this means, and why this is the case; I'll also discuss methods for establishing ``$\mathcal Z$''-stability using central sequence, and some more general properties of central sequence algebras. The talk will end with a recent result showing that for a simple separable unital nuclear C*-algebra, whose extremal traces are compact and of finite covering dimension $\mathcal Z$-stability can be detected by a comparison property of the Cuntz semigroup (this result is joint work with Andrew Toms and Wilhelm Winter, which has also been independently discovered by Eberhard Kirchberg and Mickael Rørdam, and by Yasuhiko Sato).