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Summer 2010
Oberseminar Nonlinear Dynamics
Organizers
Program
| Apr 20, 2010 |
SFB 647 |
| May 4, 2010 |
Alexey Osipov
(St. Petersburg State University) |
(Non)genericity of shadowing properties |
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We will consider the following shadowing properties of discrete dynamical
systems: pseudo-orbit tracing property (or standard shadowing property),
orbital shadowing property and weak shadowing property. We will discuss the
problems of genericity and density of the above-mentioned shadowing
properties in different spaces of discrete dynamical systems on closed
smooth manifolds. Particularly we will talk about nondensity of orbital
shadowing property with respect to C^1-topology.
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| May 11, 2010 |
SFB 647 |
| May 18, 2010 |
Bernold Fiedler
(Free University Berlin) |
Global attractors of Sturm type: examples and counterexamples |
| May 25, 2010 |
8th AIMS Conference on Dynamical Systems, Differential Equations and Applications |
| Jun 01, 2010 |
SFB 647 |
| Joint SIAM/RSME-SCM-SEMA Meeting
Emerging Topics in Dynamical Systems and Partial Differential Equations, DSPDEs'10, Barcelona, Spain |
| Jun 08, 2010 |
Michael Winkler
(University of Duisburg-Essen) |
Irreversibly heading for balance?
Some examples of colorful dynamics in simple diffusion processes |
Diffusion equations have been thoroughly studied in the past decades, and
a large variety of results has given rise to some common belief about
effects of diffusion. Typical conclusions of this flavor read as follows.
- Bounded solutions stabilize towards some equilibrium.
- Diffusive evolution never returns to a state in which it has already
been sometime in the past.
- Singularities are melted down either instantaneously or never.
The intention of the talk is to present some exemplary results which
indicate that such dogma-like statements need not be true in general.
To underline this, the main focus will be on cases where the mathematical
setting, made up by the PDE ingredients, space dimensions and domains, is
as simple as possible.
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Marek Fila
(Comenius University, Bratislava) |
Homoclinic and Heteroclinic Orbits for a Semilinear Parabolic Equation |
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We study the existence of connecting orbits for the Fujita equation,
ut=Δu+up,
with a critical or supercritical exponent p.
For certain ranges of the exponent we prove the existence of heteroclinic connections from
positive steady states to zero and the existence of a homoclinic orbit with respect to zero.
This is a joint work with Eiji Yanagida.
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| Jun 15, 2010 |
SFB 647 |
| Jun 22, 2010 |
SFB 647 |
| Jun 29, 2010 |
Sergey Tikhomirov
(PUC, Rio de Janeiro) |
Dynamical systems with hysteresis |
| 15:15,
Free Unversity Berlin, Room 140, Arnimallee 7 (rear building), 14195 Berlin |
| Jul 06, 2010 |
International Workshop on Nonlinear Dynamics on Networks, Kiev, Ukraine |
| Jul 13, 2010 |
SFB 647 |
Time and Place
Talks usually take place on Tuesday at 3:15 p.m.
at the Weierstraß Institute
Ehrhard-Schmid-Hörsaal, Mohrenstr. 39, 10117 Berlin.
Tea and coffee will be served at 2:45 p.m. on the ground floor.
Guests are always welcome !
Archive
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Last change: Jun. 28, 2010
