Organizers

prof. dr hab. Grzegorz Łukaszewicz

Information

Thursdays, 12:30 p.m. , room: 5070

Research fields

Mathematical Physics and Applied Analysis

List of talks

April 30, 2015, 12:30 p.m.
Zbigniew Czechowski (Zakład Geofizyki Teoretycznej, Instytut Geofizyki PAN, Warszawa)
Równanie Langevina jako makroskopowy model zjawisk geofizycznych.
Przy badaniu wielu zjawisk geofizycznych podstawowym obiektem jest szereg czasowy pewnej rejestrowanej wielkości. Bywa i tak, że jest on jedyną informacją o interesującym nas procesie. Za pomocą metod analizy szeregów czasowych poznajemy podstawowe i bardziej …
April 23, 2015, 12:30 p.m.
Jan Sokolowski (Universite de Lorraine, Francja)
Shape optimization in multiphysics
SEMINARIUM ZRFM w dniu 23 kwietnia jest odwołane z powodu niemożności przyjazdu referującego w tym terminie.
April 9, 2015, 12:30 p.m.
Jacek Cyranka (Uniwersytet Warszawski)
Konstrukcja dwóch różnych rozwiązań dla pewnego problemu eliptycznego
Praca wspólna z P. B. Muchą. Zaprezentuje metodę dowodzenia istnienia dwóch rozwiązań dla eliptycznej regularyzacji dwuwymiarowego równania Burgersa z wymuszeniem $$ u\cdot\nabla u+(-\Delta)^m u = \lambda F. $$ Motywacja do badania tego równania była niezwykła …
March 26, 2015, 12:30 p.m.
Karolina Kropielnicka
Effective Approximation for the semiclassical Schrödinger equation.
The computation of the semiclassical Schrödinger equation presents a number of difficult challenges because of the presence of high oscillation and the need to respect unitarity. Given periodic boundary conditions, the typical approach consists, basically, …
March 19, 2015, 12:30 p.m.
Dr. Raimondas Jasevičius (Vilnius University, Faculty of Mathematics and Informatics)
Numerical modeling of bacterium-surface interaction by applying discrete element method
March 12, 2015, 12:30 p.m.
Christian Klingenberg ( Institut für Mathematik - Universität Würzburg)
The universe in a computer: how mathematical and numerical methods are essential
We will talk about our contribution to a large project with the goal of a self-consistent numerical simulation of the evolution of the universe beginning soon after the Big Bang and ending with the formation …
March 5, 2015, 12:30 p.m.
Emil Wiedemann, (HCM, University of Bonn)
Measure-Valued Solutions of the Euler Equations
Measure-valued solutions of the incompressible Euler equations were first considered by DiPerna and Majda to describe effects of oscillation and concentration in ideal fluids. Although measure-valued solutions appear a priori as much weaker objects than …
Feb. 26, 2015, 12:30 p.m.
Tomasz Cieślak (IM PAN)
Dissipative solutions to the Hunter-Saxton equation, continuation
My talk is based on our common paper with G.Jamroz. After recalling the result and the main ideas I will review some aspects of the topic not covered in the earlier talk by G.Jamroz
Jan. 15, 2015, 12:30 p.m.
Tomasz Piasecki (Uniwersytet Warszawski)
Stationary compressible Navier-Stokes equations with inflow boundary conditions.
Abstract:I will discuss recent results in the theory of compressible flows describedby Navier-Stokes equations focusing on problems with inhomogeneous boundarydata admitting inflow and outflow through the boundary.Admission of inflow /outflow leads to substantial mathematical difficulties.In …
Jan. 8, 2015, 12:30 p.m.
Jan Peszek (Uniwersytet Warszawski)
Mathematical description of flocking
I will discuss the recent developments in the mathematical description of flocking with singular allignment force and how this singularity affects the possibility of the emergence of phenomena with new qualities.
Dec. 18, 2014, 12:30 p.m.
Simon Axmann
Steady solutions to the compressible Navier-Stokes-Allen-Cahn system.
The Navier-Stokes-Allen-Cahn system is a diffuse interface model describing a two-phase flow of compressible viscous fluid. We study the existence of steady solutions with bounded density under the assumption of slip boundary condition for the …
Dec. 11, 2014, 12:30 p.m.
Iwona Skrzypczak (Uniwersytet Warszawski)
Hardy inequalities derived from Caccioppoli. The cases of constant and variable p.
I will discuss Hardy inequalities for general class of functions resulting from Caccioppoli inequalities for solutions to nonlinear problems involving p-Laplacian with constant and variable p.
Dec. 4, 2014, 12:30 p.m.
Grzegorz Jamróz (IMPAN)
Maximal dissipation in hyperbolic equations - how to select physical solutions?
We first discuss a natural criterion for selection of unique solutions of hyperbolic PDEs - the so-called maximal dissipation criterion. Then we show how to apply it to the so-called Hunter-Saxton equation, known from the …
Nov. 27, 2014, 12:30 p.m.
prof. Edrissa Titi (Weizmann Institute)
Is Dispersion a Stabilizing or Destabilizing Mechanism?
Kolokwium Wydziałowe:Więcej informacji na stronie programu SSDNM: http://ssdnm.mimuw.edu.pl/wyklady
Nov. 20, 2014, 12:30 p.m.
Michał Łasica (Uniwersytet Warszawski)
Regular solutions to a very singular equation