فهرس المقالات somayeh sadat mahdion المقاله 1 - Investigating the New Conservation Laws of Hunter-Saxton Equation via Lie Symmetries 10.30495/ijm2c.2023.1982280.1271 Mehdi Jafari Somayeh Sadat Mahdion International Journal of Mathematical Modeling & Computations , العدد 2 , السنة 13 , بهار 2023