Tidligere arrangementer - Side 27

This year's Hassel lecture is headed by Professor Veronique Van Speybroeck. The second day Professor Speybroeck will present the lecture "From quantum mechanics to machine learning: Bridging length and time scales in modeling nanoporous materials at operating conditions."

This year's Hassel lecture is headed by Professor Veronique Van Speybroeck. The second day Professor Speybroeck will present the lecture "From quantum mechanics to machine learning: Bridging length and time scales in modeling nanoporous materials at operating conditions."

Florian Niedermann, Nordic Institute for Theoretical Physics, Stockholm University.

The Center of Islamic and Middle Eastern Studies (CIMS) at UiO is inviting researchers and students of all levels to a Master Class with Asef Bayat, Professor of Sociology from the University of Illinois. 

Philosophical Seminar with Kristin Gjesdal

Hilbert schemes of points on a smooth projective curve are simply symmetric powers of the curve itself; they are smooth and we know essentially everything about them. We propose a variation by studying double nested Hilbert schemes of points, which parametrize flags of 0-dimensional subschemes satisfying certain nesting conditions dictated by Young diagrams. These moduli spaces are almost never smooth but admit a virtual structure ¨¤ la Behrend-Fantechi. We explain how this virtual structure plays a key role in (re)proving the correspondence between Gromov-Witten invariants and stable pair invariants for local curves, and say something on their K-theoretic refinement.

Department seminar. ?rem G¨¹?eri is an Associate Professor of Economics and Public Policy, Blavatnik School of Government, at the University of Oxford. She will present the paper: "Dynamics of Financing Frictions for R&D."

Join us for a CIMS lecture with Asef Bayat, Professor of Sociology from the University of Illinois.

Felleskollokvium by Prof. Sverre Holm, Dept. of Physics, UiO

This year's Hassel lecture is headed by Professor Veronique Van Speybroeck. The first day Professor Speybroeck will present the lecture "Operando modeling of functional nanostructured materials for sustainable chemistry, nanosensing and clean energy."

This year's Hassel lecture is headed by Professor Veronique Van Speybroeck. The first day Professor Speybroeck will present the lecture "Operando modeling of functional nanostructured materials for sustainable chemistry, nanosensing and clean energy."

Henrik Johnsson (University of Troms?) will present his ongoing research on Ibsen's plays and the degeneration discourse.

Henrik Johnsson (University of Troms?) will present his ongoing research on Ibsen's plays and the degeneration discourse.

Online changepoint detection algorithms based on likelihood-ratio tests have excellent statistical properties. However, a simple exact online implementation is computationally infeasible as, at time T, it involves considering O(T) possible locations for the change. To improve on this, we use functional pruning ideas to reduce the set of changepoint locations that need to be stored at time T to approximately log T. Furthermore, we show how we need only maximise the likelihood-ratio test statistic over a small subset of these possible locations. Empirical results show that the resulting exact online algorithm, which can detect changes under a wide range of models, has a constant-per-iteration cost on average. We consider applications of this algorithm in the context of detecting increases in radiation count that represent astronomical or nuclear events of interest.

The Kolmogorov N-width describes the best possible error one can achieve by elements of an N-dimensional linear space. Its decay has extensively been studied in Approximation Theory and for the solution of Partial Differential Equations (PDEs). Particular interest has occurred within Model Order Reduction (MOR) of parameterized PDEs e.g. by the Reduced Basis Method (RBM). While it is known that the N-width decays exponentially fast (and thus admits efficient MOR) for certain problems, there are examples of the linear transport and the wave equation, where the decay rate deteriorates to N^-1/2. On the other hand, it is widely accepted that a smooth parameter dependence admits a fast decay of the N-width. However, a detailed analysis of the influence of properties of the data (such as regularity or slope) on the rate of the N-width seems to lack. In this work, we use techniques from Fourier Analysis to derive exact representations of the N-width in terms of initial and boundary conditions of the linear transport equation modeled by some function g for half-wave symmetric data. For arbitrary functions g, we derive bounds and prove that these bounds are sharp. In particular, we prove that the N-width decays as c_r N^(-r-1/2) for functions in the Sobolev space, g ¡Ê H^r. Our theoretical investigations are complemented by numerical experiments which confirm the sharpness of our bounds and give additional quantitative insigh.

?rets Abelprisvinner Luis Caffarelli og tre spesielt inviterte matematikere holder forelesninger som er ?pne for alle.

Invited speaker Professor Jussi Taipale will present at the NCMM Tuesday Seminar on the topic ¡°Towards predicting gene expression from sequence¡±.

Department seminar. Johannes Haushofer is a Professor of Economics at the Department of Economics, Stockholm University. He will present the paper: "The Comparative Impact of Cash Transfers and Psychotherapy on Psychological and Economic Well-being" (written with Robert Mudida and Jeremy Shapiro).

What happens when political priorities, cultural squabbles and business interests undermine public health efforts during a pandemic? In this breakfast seminar, Professor Emily Mendenhall will discuss how people responded to COVID-19 in Okoboji, a small town in the American Midwest. 

Philosophical Seminar with Endre Begby (Simon Fraser University)

Department seminar. John Finlay is a postdoc at Columbia Business School. He will present the paper: "Exporters, Credit Constraints, and Misallocation."

Archaeological Friday seminar with Dave Killick, professor at the School of Anthropology, University of Arizona.

Nate Young has made an app that could make the lives of those interested in sound change in Scandinavian a lot easier. Come and see the beta version presented!

In this talk, Stuart Earle Strange, assistant professor of anthropology at Yale-NUS College, Singapore, will explore the contradictions between law, sovereignty, animal agency, and the sacred in Singaporean wildlife conservation.