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Cotygodniowe seminarium badawcze
2021-05-20, godz. 12:30, Zoom (szczegóły poniżej)
Sadokat Malikova (doktorantka SDNŚiP)
Approximation of the shape of rigid obstacle in a viscous fluid
We analyze a model based on the classical Navier-Stokes system describing a flow through an obstacle.The goal is to approximate the obstacle by an area with high viscosity. In such situation we obtain an elliptic problem with discontinuous coefficients. From the mathematical perspect...
2021-05-13, godz. 12:30, Zoom - szczegóły pod streszczeniem
Szymon Charzyński (FUW)
Trapping and guiding bodies by gravitational waves endowed with angular momentum
It has been established theoretically and experimentally confirmed that electromagnetic waves endowed with angular momentum (for example, Bessel beams) can trap charged particles in the vicinity of the beam center. It can be shown that trapping of bodies by waves can be extended from electromagnetis...
2021-04-29, godz. 12:30, Zoom
Jakub Skrzeczkowski (SDNŚiP)
Fast reaction limit with nonmonotone reaction function
W załączniku. ------------------------------------------- Join Zoom Meeting https://us02web.zoom.us/j/81583752461?pwd=c2xXN0hoQVBVc2JLNmNYRHkxTzV4UT09 Meeting ID: 815 8375 2461 Passcode: 495149 ...
2021-04-15, godz. 12:30, Zoom (szczegóły poniżej)
Bohdan Petraszczuk (doktorant SDNŚiP)
I will discuss regularity of maps from W^{n/2,2}(B^{n}(0,1), R^{n+1}) where B^{n} denotes the n-dimensional unit ball and n > 0 is even, which is a solution of H-system for a Lipschitz and bounded function H. The second part of the meeting will be about regularity of n-harmonic maps, which are ...
2021-04-08, godz. 16:00, Zoom - szczegóły pod abstraktem
Professor Martin Ostoja-Starzewski (Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, US)
Spontaneous Violations of the Clausius-Duhem Inequality
Zoom link: https://us02web.zoom.us/j/81583752461?pwd=c2xXN0hoQVBVc2JLNmNYRHkxTzV4UT09 Meeting ID: 815 8375 2461 Passcode: 495149 ...
2021-03-25, godz. 12:30, Zoom (szczegóły poniżej)
Grzegorz Łukaszewicz (MIM UW)
Vertical heat transport at infinite Prandtl number for micropolar fluid.
Collaborators: M. Caggio (Univ. of L'Aquila), P. Kalita (UJ), K. Mizerski (IGF PAN) We investigate the upper bound on the vertical heat transport in the fully 3D Rayleigh-Benard convection problem at infinite Prandtl number for a micropolar fluid. Our results are as follows: (1) We obtain a bo...
2021-03-18, godz. 12:30, Zoom (link poniżej streszczenia)
prof. Christopher Jones (Department of Applied Mathematics, University of Leeds, UK)
Giant planet interiors in the light of the Juno and Cassini missions
The Juno mission to the planet Jupiter has revealed significant new information about the processes going on inside the planet. Similar data for Saturn was obtained from the Cassini grand finale. Accurate measurements of Jupiter’s gravity fields has shown that the odd spherical harmonic compon...
2021-03-11, godz. 12:30, Spotkanie na Zoom
Piotr Skrzypacz (Nazarbayev University, Kazachstan)
O zaawansowanych metodach elementów skończonych dla zastosowań w inżynierii reaktorów chemicznych
Join Zoom Meeting https://us02web.zoom.us/j/81583752461?pwd=c2xXN0hoQVBVc2JLNmNYRHkxTzV4UT09 Meeting ID: 815 8375 2461 Passcode: 495149 ...
2021-03-04, godz. 12:30, Spotkanie na Zoom
Lucjan Sapa (AGH w Krakowie, WMS)
Parabolic-elliptic and parabolic systems in diffusion models
The presentation deals with nonlinear parabolic--elliptic and parabolic systems with initial-boundary conditions modeling biological ion channels and interdiffusion in solids. I will formulate theorems on local and global existence, uniqueness and properties of weak solutions, in suitable Sobolev sp...
2021-01-28, godz. 12:30, Zoom - szczegóły pod abstraktem
Maja Szlenk (doktorantka SDNŚiP)
Existence of weak solutions to compressible Stokes system with general pressure
In the presentation I will talk about the existence and uniqueness of weak solutions to the compressible Stokes system. Using the Lagrangian formulation, we are able to prove that the solution is globally bounded, provided that the initial data are bounded. Moreover, our approach works for large cla...
