DISCRETIZATION OF LAPLACIAN OPERATOR IN POLAR COORDINATE SYSTEM, USING CRANK-NICOLSON’S (CN) SCHEME AND STABILITY ANALYSIS. Kashf Journal of Multidisciplinary Research, [S. l.], v. 3, n. 02, p. 163–176, 2026. DOI: 10.71146/kjmr844. Disponível em: https://www.kjmr.ac.pk/kjmr/article/view/844. Acesso em: 13 jun. 2026.