Previous events - Page 285

We'll be discussing Lawrence et al. 2012  this week. Please also read the commentary on this paper in the same journal written by Turcotte et al. 2012 titled "Adaptive Evolution in Ecological Communities"

Note the location: Room 3513 at other the end of the hall down from coffee... a part of CEES I bet many of you have never seen! Come come!

Discussions on Epigenetics and Transgenerational Inheritance: Hallsson L.R., S.F. Chenoweth & R. Bonduriansky. 2012. JEB 25: 2422-2431

Markus Eckerstorfer at Department of Geosciences will be defending the thesis: Snow avalanches in central Svalbard: A field study of meteorological and topographical triggering factors and geomorphological significance.

Doctoral candidate Markus Eckerstorfer at Department of Geosciences will give a trial lecture on the given topic: The role of snow and its distribution patterns for low-land and mountain permafrost

Fred Shultz, Wellesley College, USA will give a talk with title "Decomposing separable states".

This is the first in a joint seminar series organised by the Operator Algebra group (UiO), Several Complex Variable group (UiO) and the CAS group.  The plan is to have seminars every other week.  

Abstract: This talk will begin with a brief introduction to entanglement and its applications, since that motivates the mathematics to be discussed.  In the title of this talk, a state is a positive linear functional on the tensor product of the algebras of m x m and n x n complex matrices.  Such a state is separable if it is a convex combination of product states. An interesting open problem is to give a useful criterion for a state to be separable. A related problem is to give a systematic way to find a decomposition of a separable state into a convex combination of product states.  This talk will describe such a decomposition for a class of separable states that is of both physical and mathematical interest.  This decomposition is also applicable to a class of completely positive maps (which correspond to certain quantum channels). This is joint work with Erik Alfsen.  

Paul Kruehner, MAWREM/CMA, holder et seminar med tittelen: Subordination of Hilbert space valued Lévy processes

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.

Friday seminar by Barbara Bramanti

We'll be discussing this paper: Pigott & Tobias Ecology Letters 2012 which claims that the rate of transition to sympatry accelerates as ecological differences accumulate. This is taken as evidence for species interactions on evolutionary time scales.

CEES Extra seminar by Ulf Büntgen

Discussions on Epigenetics and Transgenerational Inheritance: Bonduriansky, R. & T. Day. 2013. JEB 26:76-87

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.

Friday seminar by Torstein Tengs

Håkon Dahle, forsker, Institutt for teoretisk astrofysikk.

Late lunch talk by the CEES RADseq platform

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. 

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

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.

Friday seminar by Thorsten Reusch

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.

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

Metagenomics workshop with Dr. C. Titus Brown. Remember to sign up!

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.  

A Norwegian Sequencing Centre (NSC) one-day seminar. All are welcome!