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math.NA2026
Unconstrained Scheme for Geometrically Constrained Gradient Flows
Sören Bartels, Lucas Bouck, Christian Palus
In this paper, we study the approximation of gradient flows of harmonic maps, which serve as model problems for applications in micromagnetics, liquid crystals, and nonlinear plate…
math.OC2026
A -Based Semi-Smooth Newton Method for Convex Variational Problems
Sören Bartels, Alex Kaltenbach
In this paper, we devise a -based semi-smooth Newton method that is applicable to a finite element discretization of a broad class of nonsmooth convex variatio…