Minimizing movements for dislocation dynamics with a mean curvature term
ESAIM: Control, Optimisation and Calculus of Variations, Tome 15 (2009) no. 1, pp. 214-244.

We prove existence of minimizing movements for the dislocation dynamics evolution law of a propagating front, in which the normal velocity of the front is the sum of a non-local term and a mean curvature term. We prove that any such minimizing movement is a weak solution of this evolution law, in a sense related to viscosity solutions of the corresponding level-set equation. We also prove the consistency of this approach, by showing that any minimizing movement coincides with the smooth evolution as long as the latter exists. In relation with this, we finally prove short time existence and uniqueness of a smooth front evolving according to our law, provided the initial shape is smooth enough.

DOI : https://doi.org/10.1051/cocv:2008027
Classification : 53C44,  49Q15,  49L25,  28A75,  58A25
Mots clés : front propagation, non-local equations, dislocation dynamics, mean curvature motion, viscosity solutions, minimizing movements, sets of finite perimeter, currents
@article{COCV_2009__15_1_214_0,
author = {Forcadel, Nicolas and Monteillet, Aur\'elien},
title = {Minimizing movements for dislocation dynamics with a mean curvature term},
journal = {ESAIM: Control, Optimisation and Calculus of Variations},
pages = {214--244},
publisher = {EDP-Sciences},
volume = {15},
number = {1},
year = {2009},
doi = {10.1051/cocv:2008027},
mrnumber = {2488577},
language = {en},
url = {http://www.numdam.org/item/COCV_2009__15_1_214_0/}
}
Forcadel, Nicolas; Monteillet, Aurélien. Minimizing movements for dislocation dynamics with a mean curvature term. ESAIM: Control, Optimisation and Calculus of Variations, Tome 15 (2009) no. 1, pp. 214-244. doi : 10.1051/cocv:2008027. http://www.numdam.org/item/COCV_2009__15_1_214_0/

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