Tidlegare gjesteforelesninger og seminarer - Side 50

Joop Schaye, Leiden University, The Netherlands.

Christophe Henry

Post doc at Observatoire de la Cote d'Azur, Laboratoire Lagrange

Kate Whitaker, Assistant Professor at the University of Connecticut

By Gene Hunt from the Department of Paleobiology, Smithsonian Institution, National Museum of Natural History, USA.

Nordfjordeid Summer school 2018

AQUA/CEES Extra seminar by Clint Muhlfeld from U.S. Geological Survey and University of Montana

By Folmer Bokma from Umeå University, Sweden 

Ingunn Wehus, Researcher, Institute of Theoretical Astrophysics, University of Oslo.

Anders Kvellestad, Department Physics, UiO

Andrius Popovas, ITA

On Friday, instead of the ordinary institute seminar, we'll have Friday mingle in the lobby. We will celebrate some of the Institute's history and past research leaders with an extra good birthday cake, so please come! It will be time to chat and hear what people are doing. Friday at 11.00 in the lobby.

Kurusch Ebrahimi-Fard (NTNU) will give a talk with title: Moment-cumulant relations in noncommutative probability and shuffle-exponentials

Abstract: In this talk we consider monotone, free, and boolean moment-cumulant relations from the shuffle algebra viewpoint. Cumulants are described as infinitesimal characters over a particular combinatorial Hopf algebra, which is neither commutative nor cocommutative. As a result the moment-cumulant relations can be encoded in terms of shuffle and half-shuffle exponentials. These shuffle exponentials and the corresponding logarithms permit to express monotone, free, and boolean cumulants in terms of each other using the pre-Lie Magnus expansion. If time permits we will revisit additive convolution in monotone, free and boolean probability and related aspects. Based on joint work with F. Patras (CNRS).

In this second talk I will prove the local slice theorem and give examples of applications, discuss compactness properties of instanton moduli spaces, and explain the definition and some properties of instanton homology.

In their book "Riemann-Roch Algebra", Fulton and Lang give an account of Chern classes in lambda-rings and a general version of Grothendieck's Riemann-Roch theorem. Their definition of Chern classes is based on the additive formal group law.  In work on connective K-theory, Greenlees and I have given an account of Chern classes in lambda-rings based on the multiplicative formal group law.  This account has an evident generalization to any formal group law.  The course will be an attempt to carry out Fulton and Lang's program in this more general setting.  Hoped for applications include generalizations of results relating rational lambda-modules to twisted Dirichlet characters. ---

The third Scandinavian Gathering Around Remarkable Discrete Mathematics

Prøveforelesning for professorstilling i TEM: The microscopic and macroscopic models of an ideal gas

Beatríz Villarroel, Uppsala University

Speakers: Eörs Szathmáry, Ferenc Jordan, and András Báldi. [Update: Gabor Foldvari's talk on "Urban ecology of tick-borne diseases: how to anticipate?" has been moved to Wednesday 25 April.]

By Gabor Foldvari, Department of Parasitology and Zoology, University of Veterinary Medicine, Budapest