We consider the evolution of fronts by mean curvature in the presence of obstacles. We construct a weak solution to the flow by means of a variational method, corresponding to an implicit time-discretization scheme. Assuming the regularity of the obstacles, in the two-dimensional case we show existence and uniqueness of a regular solution before the onset of singularities. Finally, we discuss an application of this result to the positive mean curvature flow.
@article{AIHPC_2012__29_5_667_0, author = {Almeida, L. and Chambolle, A. and Novaga, M.}, title = {Mean curvature flow with obstacles}, journal = {Annales de l'I.H.P. Analyse non lin\'eaire}, volume = {29}, year = {2012}, pages = {667-681}, doi = {10.1016/j.anihpc.2012.03.002}, mrnumber = {2971026}, zbl = {1252.49072}, language = {en}, url = {http://dml.mathdoc.fr/item/AIHPC_2012__29_5_667_0} }
Almeida, L.; Chambolle, A.; Novaga, M. Mean curvature flow with obstacles. Annales de l'I.H.P. Analyse non linéaire, Tome 29 (2012) pp. 667-681. doi : 10.1016/j.anihpc.2012.03.002. http://gdmltest.u-ga.fr/item/AIHPC_2012__29_5_667_0/
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