Fractional-order prey--predator dynamics: Existence, uniqueness, and parameter estimation    via fractional physics-informed neural networks. Nonlinear Studies, [S. l.], v. 33, n. 2, p. 755–779, 2026. Disponível em: https://nonlinearstudies.com/index.php/nonlinear/article/view/4283. Acesso em: 18 jun. 2026.