Existence and Stability of Radially Symmetric Solutions to the Swift--Hohenberg Equation

Series: 
Applied and Computational Mathematics Seminar
Monday, March 2, 2015 - 14:00
1 hour (actually 50 minutes)
Location: 
Skiles 005
,  
Montana State University
Organizer: 
The existence, stability, and bifurcation structure of localized radially symmetric solutions to the Swift--Hohenberg equation is explored both numerically through continuation and analytically through the use of geometric blow-up techniques.  The bifurcation structure for these solutions is elucidated by formally treating the dimension as a continuous parameter in the equations.  This reveals a family of solutions with an anomalous amplitude scaling that is far larger than expected from a formal scaling in the far field.  One key advantage of the geometric blow-up techniques is that a priori knowledge of this scaling is unnecessary as it naturally emerges from the construction.  The stability of these patterned states will also be discussed.