فهرست مقالات Mong-Ampere equation Lie point symmetry Partial Differential Equations Conservation laws دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - LIE SYMMETRIES, SELF-ADJOINTNESS, AND CONSERVATION LAWS OF THE MONG-AMPERE EQUATION Zahra Momennezhad Mahdi Najafikhah