Igor Chueshov Global unique solvability of 3D MHD equations in a thin periodic domain (297K, pdf) ABSTRACT. We study magnetohydrodynamic equations for a viscous incompressible resistive fluid in a thin 3D domain. We prove the global existence and uniqueness of solutions corresponding to a large set of initial data from Sobolev type space of the order $1/2$ and forcing terms from $L_2$ type space. We also show that the solutions constructed become smoother for positive time and prove the global existence of (unique) strong solutions.