%0 Journal Article %T Subsolutions of time-periodic Hamilton-Jacobi equations %A Daniel Massart %J Mathematics %D 2006 %I arXiv %R 10.1017/S0143385707000089 %X We prove the existence of $C^{1}$ critical subsolutions of the Hamilton-Jacobi equation for a time-periodic Hamiltonian system. We draw a consequence for the Minimal Action functional of the system. %U http://arxiv.org/abs/math/0604217v1