A Note On Double-Null Form For Space-Times Metrices Having (2 + 1) And (3 + 1) Dimensions. Annual Methodological Archive Research Review, [S. l.], v. 4, n. 5, p. 14–29, 2026. DOI: 10.66021/. Disponível em: https://www.amresearchjournal.com/index.php/Journal/article/view/2140. Acesso em: 15 oct. 2026.