Previous events - Page 54

Haakon Andresen, Max Planck Institute for Gravitational Physics, Germany

A graded Artinian Gorenstein ring A is a quotient of a polynomial ring S with the apolar ideal of a homogeneous form. The Betti numbers of the resolution of A as an S-module are invariants to the homogeneous form. In joint work with Michal and Gregorz Kapustka, Hal Schenck, Mike Stillman and Beihui Yuan, we use these Betti numbers to describe a stratification of the space of quartics in four variables.

Title: IPCC-AR6 Chap. 1: Framing, context, methods

Speaker: Bjørn Samset, Cicero 

Alberto Merici will present his paper (joint with Frederico Binda and Shuji Saito) "Derived log Albanese sheaves".

Doctoral candidate Frederik André Hansen at the Department of Pharmacy, Faculty of Mathematics and Natural Sciences, is defending the thesis "Electromembrane extraction of polar pharmaceutical bases and endogenous metabolites" for the degree of Philosophiae Doctor.

Doctoral candidate Bjørg Jenny Kokkvoll Engdahl at the Department of Geosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis Improved predictions of supercooled liquid water and atmospheric icing in the HARMONIE-AROME weather prediction model for the degree of Philosophiae Doctor.

Oliver Röndigs will give a one hour talk entitled "Homotopy of SL_n and the relation between Milnor- and Quillen K-theory"

Eric Larose (Université Grenoble Alpes): Environmental seismology : an emerging tool for probing slopes stability, rockfalls, and the evolution of the permafrost.

Doctoral candidate Christian Agrell at the Department of Mathematics, Faculty of Mathematics and Natural Sciences, is  defending the thesis Probabilistic machine learning and phenomenological knowledge Developments for optimization under uncertainty in safety-critical systems for the degree of Philosophiae Doctor.

Abstract: It is known that a sessile drop subject to a forced vibration will vibrate in different shapes depending on the frequency of the forcing, the drop’s liquid properties and the liquid/solid/gas system. So the question then becomes, what can these vibrating drops help us understand? Here we find that we can use the motion of these drops to understand the constitutive law relating the drop’s apparent dynamic contact angle to its contact line velocity. We find we are able to extract mobility parameters like those described by the Davis-Hocking model, and that mobility parameters extracted in this fashion can be used in simulations of drop-drop coalescence to accurately predict post-coalescence dynamics.

This talk is part of the Mechanics Lunch Seminar series. That means 20min talks plus discussion in an informal setting and bring-your-own-lunch.

Tiago Costa, Max Planck Institute for Astrophysics, Germany

Title: The IPCC AR6 process and main messages in Summary for Policy makers

Speaker: Jan Fuglestvedt, Cicero 

^{The webinar in hydrogeology gives students an introduction to groundwater and its relation to human activities in two different contexts; the fjords of Norway and the lowlands of Eastern Amazonia (Brazil). The webinar is organized in the frame of the Norway-Brazil cooperation project GeoSource.} 

Renaud Toussaint (Université de Strasbourg/University of Oslo): Induced seismicity under Strasbourg: Possible mechanisms

As a new master's student with us, you have the opportunity to participate in many exciting events to get to know both the University of Oslo and The Institute of Theoretical Astrophysics (ITA) as well as your new fellow students during the introduction week in August.

I august har du som ny masterstudent hos oss mulighet til å delta på mange spennende arrangementer for å bli kjent med både UiO, Institutt for teoretisk astrofysikk (ITA) og ikke minst dine nye medstudenter.

A Modular Framework for Studying Neutron Star Structure and Cooling - With Dark Matter Applications

Phantom energy: A planet, an atom and a meson walked into the end of the universe

Doctoral candidate Marvin Lambertus at the Department of Pharmacy, Faculty of Mathematics and Natural Sciences, is defending the thesis "Lactate Receptor HCA1 in Exercise-induced Neurogenesis" for the degree of Philosophiae Doctor.

An analysis of non-Gaussian models predicting anomalies in the cosmic microwave background

Doctoral candidate Neelima Kandula at the Department of Geosciences, Faculty of Mathematics and Natural Sciences, is defending the thesis Dynamic synchrotron imaging of brittle failure in crustal rocks for the degree of Philosophiae Doctor.

Abstract: Efficient and parameter robust solvers for multiscale/multiphysics systems, where the coupling is enforced by the Lagrange multipliers, rely on operators in fractional Sobolev spaces defined over the interface. Arguably, this feature is not unexpected as there is explicit coupling/an interfacial variable in the system. However, in this talk we show that even for coupled problems free of Lagrange multipliers the fractional operators are a crucial component for constructing robust preconditioners. Stokes-Darcy/Biot systems will be discussed.

This talk is part of the Mechanics Lunch Seminar series. That means 20min talks plus discussion in an informal setting.

Zoom: To obtain the Zoom meeting details please contact Timo Koch (timokoch at math.uio.no).

Investigating the large scale structure of the universe: The cosmic web as a probe for cosmological parameters.

Andrew Pontzen, University College London (UK)