Nonautonomous Hamiltonian Systems and Morales-Ramis Theory I. The Case x''=f(x, t). - Primitivo B. Acosta-Humánez (SIAM J. Appl. Dyn. Syst., 2009)

Nonintegrability of the Armbruster-Guckenheimer-Kim Quartic Hamiltonian Through Morales-Ramis Theory. - Primitivo B. Acosta-Humánez; Martha Alvarez-Ramírez; T. J. Stuchi (SIAM J. Appl. Dyn. Syst., 2018)

Nonintegrability of the Axisymmetric Bianchi IX Cosmological Model via Differential Galois Theory. - Primitivo B. Acosta-Humánez; Juan. J. Morales-Ruiz; T. J. Stuchi (SIAM J. Appl. Dyn. Syst., 2025)