Periodic traveling waves of a mean curvature equation in high dimensional cylinders

Periodic traveling waves of a mean curvature equation in high dimensional cylinders

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Article ID: iaor20115694
Volume: 217
Issue: 22
Start Page Number: 9267
End Page Number: 9277
Publication Date: Jul 2011
Journal: Applied Mathematics and Computation
Authors: ,
Keywords: geometric modelling
Abstract:

Let Ω be the unit ball in R N equ1. Consider the mean curvature equation u t = ( 1 + | Du | 2 ) σ / 2 div Du 1 + | Du | 2 + A for x Ω , t > 0 , equ2 with capillarity boundary condition Du · γ = k ( t , u ) 1 + | Du | 2 for x ϑ Ω , t > 0 , equ3 where δ and A (∂0) are real numbers, γ is the unit inner normal to ∂O and k is a smooth function with |k|<1. We first study the time‐global existence of radial solutions of (E0)‐(BC0) with some initial datum, and then study the existence, uniqueness and stability of the radial periodic traveling wave of (E0)‐(BC0) when k = k(t) or k = k ˜ ( u ) equ4 is periodic.

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