Nonlinear elliptic equations defined by a class of monotone operators with a singular nonlinearity having variable exponent. Nonlinear Studies, [S. l.], v. 28, n. 2, 2021. Disponível em: https://www.nonlinearstudies.com/index.php/nonlinear/article/view/2281. Acesso em: 14 oct. 2025.