Author name: Benedikt Magnússon

[:is] Math colloquium Fyrirlesari: Adam Timar, Háskóli Íslands Titill: Uniform Spanning Forests of infinite graphs. Staðsetning: Via Zoom. Link to be sent.Tími: Föstudag 30.október kl.10:00 Ágrip: Consider a spanning tree of a given finite graph, chosen uniformly at random. The so-defined Uniform Spanning Tree (UST) has long been an object of interest, since it is […]

[:is] Math colloquium Fyrirlesari: Kristján Jónasson, University of Iceland. Titill: Maximum likelihood estimation of multivariate normal parameters when values are missing. Staðsetning: Via Zoom. Link to be sent.Tími: Föstudag 18.September kl.10:00 Ágrip: I have been working on a program to estimate the covariance matrix of a multivariate normal distribution in the presence of missing values

[:is] Math colloquium Fyrirlesari: Bobby Cheng, University of Sussex, UK Titill: Quantum Resonances in Relativistic Systems. Staðsetning: Via Zoom. Link to be sent.Tími: Föstudag 9.október kl.10:00 Ágrip: Significant amounts of research have been completed on mathematical quantum resonances in the non-relativistic setting. However success in generalizing these results to the relativistic setting have been limited. In

[:is] Math colloquium Fyrirlesari: Peter Giesl, University of Sussex, UK Titill: Existence and construction of a contraction metric as solution of a matrix-valued PDE. Staðsetning: Via Zoom. Link to be sent.Tími: Föstudag 2.október kl.10:00 Ágrip: A contraction metric is a Riemannian metric, with respect to which the distance between adjacent solutions of an ordinary differential

[:is] Math colloquium Fyrirlesari: Joachim Toft , Department of mathematics, Faculty of Technology, Linnæus University, Växjö, Sweden Titill: Analytic pseudo-differential calculus via the Bargmann transform. Staðsetning: Via Zoom. Link to be sent.Tími: Föstudag 25.September kl.10:00 Ágrip: The Bargmann transform is a transform which maps Fourier-invariant function spaces and their duals to certain spaces of formal

[:is] Math colloquium Fyrirlesari: Yadollah Zare, Galatasaray University Titill: Center conditions: pull-back of differential equations. Ágrip: The space of polynomial differential equations of a fixed degree with a center singularity has many irreducible components. We prove that pull-back differential equations form an irreducible component of such a space. This method is inspired by Ilyashenko and Movasati’s

[:is] Math colloquium Fyrirlesari: María Óskarsdóttir, Háskólinn í Reykjavík Titill: Ranking nodes relative to influence with the Personalized PageRank algorithm applied to fraud detection and credit risk measurement Staðsetning: VRII-258Tími: Fimmtudagur 12.mars kl. 10:50 Ágrip: Various phenomena in both the physical and the digital world can be represented with networks, that is, entities that are

 [:is] Math colloquium Fyrirlesari: Sangmin Lee, Seoul National University Titill: Complete 1st post-Minkowskian potential from scattering amplitudes. Staðsetning: VHV-007 (Veröld)Tími: Mánudagur 24.Janúar kl.10:00 Ágrip: Building upon recent progress in applying amplitude techniques to perturbative general relativity, we propose a closed-form formula for the conservative Hamiltonian of a spinning binary system at the 1st post-Minkowskian order. It

[:is]Math colloquium Fyrirlesari: Ragnar Sigurðsson, University of Iceland Titill: Norms on complexifications of real vector spaces. Staðsetning: VRII-258 Tími: Fimmtudagur 6.febrúar kl. 10:50 Ágrip: The subject of this lecture is of general interest and it only requires knowledge of elementary linear algebra. The complexification V_C of a real vector space V is the smallest complex