Tidligere arrangementer - Side 99

Abhik Ghosh (Dept. of Biostatistics, UiO) will give a seminar in the lunch area, 8th floor Niels Henrik Abels hus at 14:15. 

ESOP seminar. Jonas Poulsen is a lecturer/advisor at Harvard University. He will present a paper entitled "The arrival of fast Internet and skilled job creation in Africa", written jointly with Jonas Hjort. 

We will have a new ¡°mingle¡± meeting on Friday at 11.15 (as usual). The main attraction will be Ingunn Wehus and Signe Riemer-Sorensen.   

 Otherwise there will be updates from Kristine and Viggo on the running of the institute. But fear not, there will also be plenty of time for informal chat and eating of cake.

All are welcome to the lobby on the first floor.

Alessandro Oneto? (Stockholm)? gives the Seminar in Algebra and Algebraic Geometry:

Ideals of points and Waring problems for polynomials?

Abstract: This talk addresses some of the fundamental barriers in the theory of computations. Many computational problems can be solved as follows: a sequence of approximations is created by an algorithm, and the solution to the problem is the limit of this sequence (think about computing eigenvalues of a matrix for example). However, as we demonstrate, for several basic problems in computations such as computing spectra of operators, solutions to inverse problems, roots of polynomials using rational maps, solutions to convex optimization problems, imaging problems etc. such a procedure based on one limit is impossible. Yet, one can compute solutions to these problems, but only by using several limits. This may come as a surprise, however, this touches onto the boundaries of computational mathematics. To analyze this phenomenon we use the Solvability Complexity Index (SCI). The SCI is the smallest number of limits needed in order to compute a desired quantity. The SCI phenomenon is independent of the axiomatic setup and hence any theory aiming at establishing the foundations of computational mathematics will have to include the so called SCI Hierarchy. We will specifically discuss the vast amount of classification problems in this non-collapsing complexity/computability hierarchy that occur in inverse problems, compressed sensing problems, l1 and TV optimization problems, spectral problems, PDEs and computational mathematics in general.

Centre for the Study of Equality, Social Organization, and Performance (ESOP) at the University of Oslo is organizing the Nordic International Trade Seminars (NOITS) 17th Annual Workshop to be held 19-20 May 2016.

Martin BUCHER, Directeur de Recherche, CNRS, Paris

What makes us us? Why do we react and process things differently, and how do things we experience shape us? And have you heard about the epigenetic clock that can predict your age? How does it work, and how can the epigenetic clock be used to study neuropsychiatric disorders?  Find out more about what happens to epigenetic marks in the initial stages of mouse development.

ESOP seminar. Eliana La Ferrara is Professor at Bocconi University and a Professor II at the University of Oslo. She will present a paper entitled "News vs. novelas: Can entertainment media undermine dictatorships?" written jointly with A. Chong, C. Ferraz, F. Finan and L. Meloni.

Velkommen p? likestillingsseminar p? MN-fakultetet 9. mai. 

ESOP seminar. Simon Alder is an assistant professor at the University of North Carolina, Chapel Hill. He will present a paper entitled "Chinese Roads in India: The Effect of Transport Infrastructure on Economic Development".

Ainar Drews, PhD , ITA

Abstract:  In a recent work with R. Conti (La Sapienza Univ., Rome), we have introduced a notion of positive definiteness for certain functions associated to a (unital, discrete) C*-dynamical system. We will sketch the proof of a Gelfand-Raikov type theorem for such functions and use it to construct complete positive maps on the full and the reduced C*-crossed products of the system. We will also explain how a natural definition of amenability for C*-dynamical systems emerges from our work. 

ESOP-seminar. Bernt Bratsberg is a senior research fellow at the Frisch Centre and a Professor II at the University of Oslo. He will talk about excess churning in integrated labor markets.

PET ligands for imaging Alzheimer¡¯s disease ¨C neuropathological validation.

Abstract:

Marit Sandstad, Postodoctoral fellow NORDITA

ESOP invites to a public lecture with professor Jeffrey Sachs from Columbia University. Sachs is a leading scholar in sustainable development and director of the Earth Institute at Columbia University.

By Fabienne Krauer from Institute of Social and Preventive Medicine (ISPM), University of Bern, Switzerland

Timo Koski (Dept. of Mathematics, Royal Institute of Technology, Stockholm) will give a seminar in the lunch area, 8th floor Niels Henrik Abels hus at 14:15.

ESOP seminar. Geoffrey Heal is the Donald C. Waite III Professor of Social Enterprise, Professor of Economics and Finance at Columbia University. He will present a paper entitled "Feeling the Heat: Temperature, Physiology & the Wealth of Nations", written jointly with Jisung Park. 

Jack Carlyle, Postdoc , ITA

A Scandinavian Gathering Around Remarkable Discrete Mathematics

Abstract: The talk will be on positive linear maps of the n x n matrices into itself, a topic which has become quite popular in quantum information theory.  The maps closest to physics are the completely positive ones. I?ll discuss an approximation by a completely positive map to a positive map via the trace , called the ¡°structural physical approximation¡±, the SPA of the map. Much of the talk will circle around a counter example  to a conjecture on the SPA.