فهرس المقالات Mong-Ampere equation Lie point symmetry Partial Differential Equations Conservation laws حرية الوصول المقاله صفحة الملخص نص كامل 1 - LIE SYMMETRIES, SELF-ADJOINTNESS, AND CONSERVATION LAWS OF THE MONG-AMPERE EQUATION Zahra Momennezhad Mahdi Najafikhah