On the expansive map in extended S_b metric space with application. Siddhanta’s International Journal of Physics, Chemistry, Mathematics , [S. l.], v. 2, n. 1, p. 60–65, 2026. Disponível em: https://siddhantainternationalpublication.com/index.php/sijpcm/article/view/37. Acesso em: 27 jun. 2026.