[: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 […]
[: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 »
[: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 »
[: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 »
[: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 »
[: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
[: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
[: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 »
[:is] Math Phys seminar Fyrirlesari: Jesús Zavala Franco, Háskóli Íslands og Javier Israel Reynoso Córdoba, Universidad de Guanajuato Titill: The Boltzmann equation for a rarefied fluid in linear perturbation theory Staðsetning: HB5 (Háskólabíó)Tími: Föstudag 4.oktúber kl. 11:40 Ágrip: Linear perturbation theory is the basis upon which we understand the initial growth of density perturbations in
Jesús Zavala Franco and Javier Israel Reynoso Córdoba Read More »
[:is]Math colloquium Fyrirlesari: Björn Birnir, Center for Complex and Nonlinear Science at the University of California at Santa Barbara (UCSB) Titill: When can we expect the Greenland glacier to melt? Staðsetning: VR-II,V-258Tími: Þriðjudag 27.ágúst kl. 11:00 Ágrip: It was suggested by Rose (2005) that because of the migratory and responsive nature of the capelin, a
