Author name: Benedikt Magnússon

Sangmin Lee, Seoul National University

Málstofa í stærðfræði /

 [: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 […]

Sangmin Lee, Seoul National University Read More »

Ragnar Sigurðsson, University of Iceland

Málstofa í stærðfræði /

[: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

Ragnar Sigurðsson, University of Iceland Read More »

Jakob Björnberg

Math Phys seminar /

[:is] Math Phys seminar Fyrirlesari: Jakob Björnberg, Chalmers University of Technology Titill: Random permutations and Heisenberg models. Ágrip: We discuss probabilistic representations of certain quantum spin systems, including the ferromagnetic Heisenberg model, in terms of random permutations. Properties of the cycle structure of the random permutations are connected with phase transitions in the spin-system.  In

Jakob Björnberg Read More »

Lukas Schneiderbauer

Málstofa í stærðfræði /

[:is] Math colloquium Fyrirlesari: Lukas Schneiderbauer, Háskóli Íslands Titill: Non-Commutative Geometry: An introduction. Ágrip: This is my attempt to introduce non-commutative geometry to mathematicians. After putting forward the main ideas and main theorem(s), I will concentrate on the construction of simple examples in the context of fuzzy spaces (special cases of non-commutative geometries). In case

Lukas Schneiderbauer Read More »

Sigurður Freyr Hafstein

Málstofa í stærðfræði /

[:is]Math colloquium Fyrirlesari: Sigurður Freyr Hafstein, Háskóli Íslands Titill: Lyapunov functions for stochastic differential equations and their computation Staðsetning: HB5 (Háskólabíó) Tími: Föstudag 15.nóvember kl. 11:40 Ágrip: Attractors and their basins of attraction in deterministic dynamical systems are most commonly studied using the Lyapunov stability theory.  Its centerpiece is the Lyapunov function, which is an

Sigurður Freyr Hafstein Read More »

Iman Mehrabinezhad

Málstofa í stærðfræði /

[:is]Math colloquium Fyrirlesari: Iman Mehrabinezhad, Háskóli Íslands Titill: A new method for computation and verification of contraction metrics Staðsetning: HB5 (Háskólabíó) Tími: Föstudag 8.nóvember kl. 11:40 Ágrip: The determination of exponentially stable equilibria and their basin of attraction for a dynamical system given by a general autonomous ordinary differential equation can be achieved by means

Iman Mehrabinezhad Read More »

Daniel Fernández Moreno

Math Phys seminar /

[:is] Math Phys seminar Fyrirlesari: Daniel Fernández Moreno, Háskóli Íslands Titill: The philosophy of emergent spacetime Staðsetning: HB5 (Háskólabíó) Tími: Föstudag 18.oktúber kl. 11:40 Ágrip: One of the most startling observations in recent theoretical physics is that certain phenomena are better described as resulting from a higher dimensional spacetime. The gauge-gravity correspondence projects them into

Daniel Fernández Moreno Read More »

Danny Brattan

Math Phys seminar /

[:is]Math colloquium Fyrirlesari: Danny Brattan, University of Genoa Titill: Hydrodynamical charge density wave description for transport in the strange metal phase of cuprates Staðsetning: Naustið-EndurmenntunTími: Miðvikudag 9.oktúber kl. 11:00 Ágrip: The mechanism controlling the exotic behavior of the transport properties in the strange metallic phase of high temperature superconductors is one of the main unresolved

Danny Brattan Read More »

Emil Have

Math Phys seminar /

[:is]Math phys colloquium Fyrirlesari: Emil Have, University of Edinburgh Titill: Newton-Cartan Submanifolds and Biophysical (Fluid) Membranes Staðsetning:  L-201 LögbergTími: Þriðjudag 8.oktúber kl. 11:00 Ágrip: Originally developed to provide a geometric foundation for Newtonian gravity, Newton-Cartan geometry and its torsionful generalization have recently experienced a revival of interest, particularly in the contexts of non-AdS holography and

Emil Have Read More »

Henning Arnór Úlfarsson

Málstofa í stærðfræði /

[:is]Math colloquium Fyrirlesari: Henning Arnór Úlfarsson, Háskólinn í Reykjavík Titill: Pattern avoidance in various domains Staðsetning: HB5 (Háskólabíó)Tími: Föstudag 25.oktúber kl. 11:40 Ágrip: When one searches the web for „pattern avoidance“ most of the results are about pattern avoiding permutations and their variants, such as colored, partial, multi-, affine, signed, and poset permutations. However there

Henning Arnór Úlfarsson Read More »