Events - Page 44

Thierry Coupez is professor at Mines - Paristech

Nigel Cutland (Uni. York) holder et seminar med tittelen: An infinitesimal introduction to DEs driven by rough paths

Steffen Sjursen, CMA, holder et seminar med tittelen: On chaos representation and orthogonal polynomials for the doubly stochastic Poisson process

Kukatharmini Tharmaratnam (Department of Mathematics, University of Oslo) will talk about

Monotone splines lasso

Dana Williams, Dartmouth College (USA) will talk on "Equivalence theorems and linking groupoids".

We will take a look at ideas for Mechanics Academy (MA), a freely-accessible web-based resource for anyone aiming to learn mechanics.

Harish Narayanan is at SIMULA.

Torstein Nilssen, CMA, holder et seminar med tittelen: Noise Prevents Singularities in Linear Transport Equations

Thordis Thorarinsdottir (Norwegian Computing Center) will talk about

Proper scoring rules and divergences to evaluate weather and climate models

Alex Lenkoski (Norwegian Computing Center and Statistics for Innovation) will talk about

Hierarchical Gaussian Graphical Models: Reversible Jump and Beyond

Rüdiger Kiesel,Uni. Essen/CMA, holder et seminar med tittelen: Model Risk for Energy Markets

Abstract: We introduce the notion of Arakelov motivic cohomology, and discuss the beautiful reformulation (due to Jakob Scholbach) of the Beilinson conjectures on special values of L-functions. 

Andre Suess, Uni. Barcelona, holder et seminar med tittelen: Integration theory for infinite dimensional processes

Nils Detering, Frankfurt School of Finance and Management, holder et seminar med tittelen: Measuring the model risk of contingent claims

Peder Østbye (Simonsen Advokatfirma) will talk about

Econometrical and statistical models in competition law evidence assessments

Raazesh Sainudiin (Department of Mathematics and Statistics, University of Canterbury) will talk about

Minimum Distance Estimation over Adaptive Histograms from Randomized Priority Queues on Statistical Regular Pavings

Atsushi Takeuchi, Uni. Osaka City, holder et seminar med tittelen: Asymptotic behavior of densities for stochastic functional differential equations

Abstract: The Kolmogorov decomposition of positive scalar valued kernels has played an important role in applications of operator theory to function theory.  It has been vastly generalised, finding its apotheosis in the result of Baretto, Bhat, Liebscher and Skeide which states that a positive $L(A,B)$-valued kernel, $A$ and $B$ $C^*$-algebras, has a Kolmogorov decomposition if and only if it is completely positive; that is, the restriction of the kernel to any finite set of index points gives a completely positive map.  The result may be viewed as a generalisation of the Stinespring dilation theorem from single point to multi-point index sets.  This talk presents the analogue of the Haagerup-Paulsen-Wittstock decomposition theorem for $L(A,B)$-valued kernels (where now $B$ is assumed to be injective).  It happens that in general complete boundedness of the kernel (ie, complete boundedness of the map resulting from restriction of the kernel to any finite index set) is not quite enough to ensure a decomposition: a certain regularity condition must also hold.  This condition can be seen to be automatic if the kernel is completely positive or the index set is countable.  This is joint work with Tirthankar Bhattacharyya and Chris Todd.  

Abstract: In topology, there is a correspondence between generalized cohomology theories (in the sense of the Eilenberg-Steenrod axioms) on one hand and spectra on the other hand, the latter being objects in the stable homotopy category SH. In algebraic geometry and motivic homotopy theory, the situation is much more complicated in several ways. Firstly, there are many stable homotopy categories, one for each scheme, and various functors between them. Secondly, there are many sets of axioms for what a cohomology theory should be (Weil cohomology, Bloch-Ogus cohomology, oriented cohomology, ...) and a huge zoo of cohomology theories. The aim of the talk will be to give an overview of all generalized cohomology theories in algebraic geometry, using the language of motivic stable homotopy theory. 

Jukka Lempa, EMMOS/CMA, holder et seminar med tittelen: Some Properties of Harmonic Functions for Diffusion Processes

Øystein Sørensen (Department of Biostatistics, UiO) will talk about

Penalized Regression with Measurement Error

Atsushi Takeuchi (Uni. Osaka City) holder et seminar med tittelen: Positivity of Densities for Stochastic Differential Equations Driven by Gamma Processes

Over the last decades important methodological advances have been made for designing and analysing nested case-control and case-cohort studies. While some of these methodologies need further developments before they can be widely used, others have matured to a level that makes them ready to use in epidemiological practice. The focus of the workshop is on the methodologies that are ready to use. The workshop is aimed at biostatisticians and epidemiologists who work with population registry data and large cohorts studies. It is assumed that the participants are familiar with cohort and classical case-control studies and the regression models used to analyse them (logistic regression and Cox regression).