Salih Yousuf Mohamed Salih and Shahinaz.A. Elsamani (2023) “ Local and Global Stability of the - Curvature”, Central Asian Journal of Theoretical and Applied Science, 4(5), pp. 147–162. Available at: https://www.cajotas.casjournal.org/index.php/CAJOTAS/article/view/1176 (Accessed: 17 April 2026).