Abstract
We study the regularity of viscosity solutions to the following Hamilton-Jacobi equations ∂ t u+H(D x u)=0inΩ⊂ℝ×ℝ n · In particular, under the assumption that the Hamiltonian H∈C 2 (ℝ n ) is uniformly convex, we prove that D x u and ∂ t u belong to the class SBV loc (Ω).