MS12* ~ Sunday, May 21, 1995 ~ 7:30 PM*
## Dynamical Consequences of System-Symmetry Breaking

This symposium will focus on the effects of system-symmetry-breaking perturbations (forced symmetry-breaking) on bifurcations in equivariant dynamical systems. The aim is to understand the sensitivity of the dynamics of equivariant systems to symmetry-breaking "imperfections". Although a systematic theory is unavailable at this time the speakers will describe specific problems, often motivated by experiments, where system-symmetry-breaking perturbations are responsible for the introduction of global connections (and associated complex dynamics) into systems that would otherwise exhibit relatively simple behavior.
Organizer: Edgar Knobloch, University of California, Berkeley

**Hopf Bifurcation with Broken O(2) Symmetry**
*Edgar Knobloch*, Organizer; and P. Hirschberg, University of California, Berkeley
**Oscillatory Bifurcation in Large Containers**
- Adam S. Landsberg, Georgia Institute of Technology
**Breaking of Normal Form Symmetry for Hopf Steady State Bifurcations**
- Vivien Kirk, University of Auckland, New Zealand
**Forced Symmetry Breaking and Complex Dynamics for PDE's**
- Reiner Lauterbach, Weierstrass Institute for Applied Analysis and Stochastics, Germany

*3/15/95*