 Nie jesteś zalogowany | zaloguj się |
| Nie jesteś zalogowany | zaloguj się |
Cotygodniowe seminarium badawcze
2021-10-21, godz. 12:30, Zoom
Mikołaj Sierżęga (MIM UW)
Optimal Liouville theorem for a semilinear Ornstein-Uhlenbeck equation
In their seminal 1985 paper, Giga and Kohn analyzed the blow-up behavior of the subcritical Fujita equation via a Liouville theorem for an associated elliptic equation of Ornstein-Uhlenbeck type. In subsequent work, Giga provided a conditional extension of this Liouville theorem to a natural br...
2021-10-14, godz. 12:30, Zoom
Marek Grądzki (Institute of Geophysics, PAN)
Magnetohydrodynamic instabilities are believed to play an important role in the evolution of astrophysical objects such as stars and accretion disks. Magnetic buoyancy instability (MBI) appears when the toroidal magnetic field in a conducting medium decreases in the direction opposite to the gravity...
2021-10-07, godz. 12:30, Zoom
Grzegorz Łukaszewicz (MIM UW)
This will be a non-technical talk about the turbulence phenomenon, a reflection on the difficulty of the subject, and the role of equations of hydrodynamics in its understanding. ...
2021-06-10, godz. 12:30, Zoom (szczegóły poniżej)
Jacopo Schino (doktorant IMPAN)
Ground state, bound state, and normalized solutions to semilinear Maxwell and Schroedinger equations
Streszczenie w załączniku. ------------------------------------------------------------------------ Join Zoom Meeting https://us02web.zoom.us/j/81583752461?pwd=c2xXN0hoQVBVc2JLNmNYRHkxTzV4UT09 Meeting ID: 815 8375 2461 Passcode: 495149 ...
2021-05-27, godz. 12:30, Zoom (szczegóły poniżej)
Prof. Andrew Gilbert (College of Engineering, Mathematics and Physical Sciences, University of Exeter, UK)
Geometric fluid mechanics and generalised Lagrangian mean (GLM) theory
In this talk I will outline the geometric view of ideal fluid mechanics, as set out by V.I. Arnold in seminal papers in the 1960s. We will then look at applications to Lagrangian averaging in fluid flows, in particular the generalised Lagrangian mean (GLM) theory of Andrews & McIntyre from the 1...
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 ...
