Tidlegare gjesteforelesninger og seminarer - Side 54

Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Oscar Agertz, Researcher, Lund Observatory

 

Tid og stad: –, Ullevål
Tid og stad: –, Store fys aud

The Strategic Research Initiatives DIATECH and REALOMICS will present status and their plans for the future.

Tid og stad: –, Gates of Eden

Erik Bedos (UiO) will give a talk with title "On Exel-Pardo algebras as Cuntz-Pimsner algebras"

Abstract:

In a joint work with S. Kaliszweski and J. Quigg (https://arxiv.org/pdf/1512.07302.pdf, to appear in JOT), we consider a continuous action of a locally compact group G on a topological graph E, equipped with a G-valued continuous cocycle, and show how to construct a C*-correspondence from these data, giving rise to a Toeplitz algebra and a Cuntz-Pimsner algebra. In the talk we will sketch this construction, but restrict ourselves to the discrete case. We will also describe these algebras in terms of generators and relations when E is row-finite. As a corollary we get that the associated Cuntz-Pimsner algebra coincides with the C*-algebra recently introduced by Exel and Pardo when E is finite and sourceless.  
 
Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Line Nybakk Akerholt, Head Librarian - Science Library

Tid og stad: –, Hurricane

Reyna Ramirez

Tid og stad: –, Ullevål
Tid og stad: –, Gates of Eden, Ullevål

Nicolai Stammeier (Oslo) will give a talk with title: The inner structure of boundary quotients of right LCM semigroups  

Abstract: In joint work with Roberto Conti, Stefano Rossi, and Valeriano Aiello, we use semidirect products built from algebraic dynamical systems to model right LCM semigroups to study various structural aspects in connection with a selection of distinguished subalgebras of the associated boundary quotients. Our two guiding examples are integral dynamics as considered in work of Barlak - Omland - Stammeier, and exact injective group endomorphisms of discrete abelian groups with finite cokernel as studied by Cuntz and Vershik.

Tid og stad: –, Seminar room 3508

By Erik Bonsdorff, professor of marine biology at Åbo Akademi University, Finland

Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Luc Blanchet, Directeur de Recherche au C.N.R.S., Institut d'Astrophysique de Paris

Tid og stad: –, Seminar room 3508

By Kathleen Pribyl, associate fellow at the Climatic Research Unit, University of East Anglia, Norwich, UK

Tid og stad: –, KBH4619

Dr. Gaëtan Burgaud, Assistant Professor, Microbial Ecology and Biodiversity Laboratory, University of Brest, France

Research gate: https://www.researchgate.net/profile/Gaetan_Burgaud

Dr Burgaud is also the opponent for the PhD defense of Maryia Khomich on Thursday 5 October.

Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Christa Gall, Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen

Tid og stad: –, B638, NH Abels hus
Tid og stad: –, Farmasibygningen, Auditorium 1

Guest lecture by resarcher Maarit Lehti, PhD, LIKES Research Centre for Physical Activity and Health, Jyväskylä, Finland.

Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

 Vibor Jelic,  Ruder Boskovic Institute, head of the  Laboratory for astroparticle physics and astrophysics.

Tid og stad: –, Room 3315, Kristine Bonnevie Building, Blindernveien 31

By Clint Perry, Cognitive Neuroethologist from Queen Mary University, London, UK

Tid og stad: –, B638, NH Abels hus
Tid og stad: –, Gates of Eden

Adam Sørensen (UiO) will give a talk with title: C*-stable groups.

Abstract: In this talk we will look at when group C*-algebra have stable relations, which loosely speaking means that any almost representation of the group in a C*-algebra will be close to an exact representation. A particularly interesting case is if we assume the C*-algebra is finite dimensional. I will mostly discuss a collection of examples. The talk is based on ongoing joint work with Søren Eilers and Tatiana Shulman.  

Tid og stad: –, Seminar room 3508

By Andries Richter, assistant professor at Wageningen University & Research

Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Benjamin Racine, Postdoc, ITA

Tid og stad: –, Hurricane
Tid og stad: –, Rom 304 (Peisestua), Institutt for teoretisk astrofysikk

Amaury Triaud, University of Birmingham