Interdisciplinary Seminar in Nonlinear Science

Title: Bifurcations of periodic orbits with spatio-temporal symmetries
Speaker: Dr. Alastair Rucklidge
Speaker Info: Cambridge U., England
Brief Description:
Special Note:

Motivated by recent analytical and numerical work on two- and three-dimensional convection with imposed spatial periodicity, we analyse examples of bifurcations from a continuous group orbit of spatio-temporally symmetric periodic solutions of partial differential equations. The presence of spatial symmetries can lead to a doubling of the marginal Floquet multiplier and to bifurcation to drifting patterns. We propose a systematic way of analysing bifurcations of periodic orbits with discrete spatio-temporal symmetries, which is relevant to other pattern formation problems, and contributes to our understanding of the transition from ordered to disordered behaviour in pattern-forming systems.

Date: Friday, May 8, 1998
Time: 2:00pm
Where: Tech M416
Contact Person: Prof. Riecke
Contact email: h-riecke@nwu.edu
Contact Phone: 847-491-8316
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