Rayleigh Quotients of the Level Set Manifolds Related to the Nonlinear PDE. Minimax Theory and its Applications, [S. l.], v. 7, n. 2, p. 277–302, 2022. Disponível em: https://journalmta.com/index.php/jmta/article/view/167. Acesso em: 14 aug. 2026.