• A. Fonda and M. Garrione, “Generalized Sturm-Liouville boundary conditions for first order differential systems in the plane”, to appear in: Topol. Methods Nonlinear Anal.
  • M. Garrione and M. Zamora, “Periodic solutions of the Brillouin electron beam focusing equation”, to appear in: Comm. Pure Appl. Anal.


  • A. Boscaggin and M. Garrione, “Planar Hamiltonian systems at resonance: the Ahmad-Lazer-Paul condition”, NoDEA Nonlinear Differential Equations Appl. 20 (2013), 825-843
  • A. Boscaggin and M. Garrione, “Sign-changing subharmonic solutions to unforced equations with singular $\phi$-Laplacian”, Proceedings Volume of the “International Conference on Differential and Difference Equations and Applications”, Conference in honour of Professor Ravi P. Agarwal., PROM, Springer, 2013, 8 pp.


  • A. Boscaggin, A. Fonda and M. Garrione, “A multiplicity result for periodic solutions of second order differential equations with a singularity”, Nonlinear Anal. 75 (2012), 4457-4470
  • A. Fonda and M. Garrione, “A Landesman-Lazer type condition for asymptotically linear second order equations with a singularity”, Proc. Roy. Soc. Edinburgh Sect. A 142 (2012), 1263-1277
  • M. Garrione, “Resonance at the first eigenvalue for first-order systems in the plane: vanishing Hamiltonians and the Landesman-Lazer condition”, Differential Integral Equations 25 (2012), 505-526
  • E. Ambrogio, M. Garrione e D. Romagnoli, “Esercizi di Matematica per le Scienze Applicate”, Levrotto & Bella, Torino, 2012, 132 pp.


  • A. Boscaggin and M. Garrione, “Resonance and rotation numbers for planar Hamiltonian systems: multiplicity results via the Poincaré-Birkhoff theorem”, Nonlinear Anal. 74 (2011), 4166-4185
  • A. Fonda and M. Garrione, “Nonlinear resonance: a comparison between Landesman-Lazer and Ahmad-Lazer-Paul conditions”, Adv. Nonlinear Stud. 11 (2011), 391-404
  • A. Fonda and M. Garrione, “Double resonance with Landesman-Lazer conditions for planar systems of ordinary differential equations”,  J. Differential Equations 250 (2011), 1052-1082
  • M. Garrione, “Resonance and Landesman-Lazer conditions for first order systems in $\mathbb{R}^{2}$”, Matematiche (Catania) 66 (2011), 153-160


  • A. Boscaggin and M. Garrione, “A note on a linear spectral theorem for a class of first order systems in $\mathbb{R}^{2N}$”, E. J. Qualitative Theory of Diff. Equ. 75 (2010), 1-22