Mathematics – Analysis of PDEs
Scientific paper
2006-03-24
Comm. Partial Differential Equations 31, 7-9 (2006) 1191-1208
Mathematics
Analysis of PDEs
Scientific paper
10.1080/03605300500361446
We study nonlocal first-order equations arising in the theory of dislocations. We prove the existence and uniqueness of the solutions of these equations in the case of positive and negative velocities, under suitable regularity assumptions on the initial data and the velocity. These results are based on new $L^1$-type estimates on the viscosity solutions of first-order Hamilton-Jacobi Equations appearing in the so-called ``level-sets approach''. Our work is inspired by and simplifies a recent work of Alvarez, Cardaliaguet and Monneau.
Barles Guy
Ley Olivier
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