Dynamical Systems Seminars
The Dynamical Systems seminar is held on Monday afternoon at
4:00 PM in MCS 148. Tea beforehand at 3:45 PM in MCS 153.
- September 15: No seminar; come to the BU/Keio Dynamics Workshop instead!
- September 22: Kelly
Title: Oscillons near Hopf bifurcations of planar forced reaction diffusion
Abstract: Oscillons are planar, spatially localized, temporally oscillating,
radially symmetric structures. They have been observed in various experimental
contexts, including fluid systems, granular systems, and chemical
systems. Oscillons often arise near forced Hopf birurcations.
It is known that small amplitude localized solutions to the planar forced
complex Ginzburg-Landau equation (fCGL) exist near onset. Using spatial
dynamics, we show that the dynamics on the center manifold of a periodically
forced reaction difuusion equation (fRD) near a Hopf bifurcation can be
captured by the fCGL. Thus, oscillon solutions to the fRD can be thought of as
a foliation over localized solutions to the fCGL. The is a work in progress,
joint with Bjorn Sandstede.
- September 29: Theo Vo (BU)
- October 6: Evelyn Sander (George Mason University)
- October 13: Columbus Day; no seminar.
- October 20: Hans Kaper
(Georgetown and UIUC)
- October 27: Semyon Dyatlov (MIT)
- November 3: Raj Prasad
Title: "Infinite Measure Preserving Transformations and Tilings of the Integers
Associated to them."
- November 10:
- November 17: Doug Wright (Drexel)
- November 24:
- December 1: Osman
- December 8:
BU Dynamical Systems Home Page
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