The $C^{0}$ integrability of symplectic twist maps without conjugate points.

It is proved that a symplectic twist map of the cotangent bundle $T^{\ast }\mathbb{T}^{d}$ of the $d$ -dimensional torus that is without conjugate points is $C^{0}$ -integrable, that is   $T^{\ast }\mathbb{T}^{d}$ is foliated by a family of invariant $C^{0}$ Lagrangian graphs. [ABSTRACT FROM AUTHOR]