USMONOVA, Zebo. POPEREKENNO-TRIANGULAR METHOD (PTM) FOR SOLVING ELLIPTIC EQUATIONS WITH GRIDS IN AN ARBITRARILY SHAPED FIELD AND ITS MODIFICATION. Natsciences.uz-Topical Issues of Natural and Applied Sciences, [S. l.], v. 1, n. 2, p. 4–7, 2026. Disponível em: https://www.natsciences.uz/index.php/journal/article/view/44. Acesso em: 3 mar. 2026.