ZAYNAB AHMED KHALLEEFAH. Spectral Analysis of Nonlinear Operators: Theoretical Foundations and Applications. Al-Mutawassit Journal for Reference Studies and Research, Libya, v. 1, n. 1, p. 34–39, 2026. Disponível em: https://www.mutawassitpub.com/index.php/mjrsr/article/view/11. Acesso em: 10 apr. 2026.