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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