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Finite element methods for director fields on flexible surfaces

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Bartels, Sören ; Dolzmann, Georg ; Nochetto, Ricardo H. ; Raisch, Alexander
Date of publication of this fulltext: 17 May 2013 08:10


We introduce a nonlinear model for the evolution of biomembranes driven by the L2-gradient flow of a novel elasticity functional describing the interaction of a director field on a membrane with its curvature. In the linearized setting of a graph we present a practical finite element method (FEM), and prove a priori estimates. We derive the relaxation dynamics for the nonlinear model on closed ...


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