Fonda, Alessandro; Ortega, Rafael A two-point boundary value problem associated with Hamiltonian systems on a cylinder. (English) Zbl 07783227 Rend. Circ. Mat. Palermo (2) 72, No. 8, 3931-3947 (2023). MSC: 37J46 37J51 PDFBibTeX XMLCite \textit{A. Fonda} and \textit{R. Ortega}, Rend. Circ. Mat. Palermo (2) 72, No. 8, 3931--3947 (2023; Zbl 07783227) Full Text: DOI OA License
Fonda, Alessandro; Sfecci, Andrea; Toader, Rodica Two-point boundary value problems for planar systems: a lower and upper solutions approach. (English) Zbl 1492.34023 J. Differ. Equations 308, 507-544 (2022). Reviewer: Alberto Cabada (Santiago de Compostela) MSC: 34B15 34B24 47N20 PDFBibTeX XMLCite \textit{A. Fonda} et al., J. Differ. Equations 308, 507--544 (2022; Zbl 1492.34023) Full Text: DOI
Fonda, Alessandro; Ureña, Antonio J. A Poincaré-Birkhoff theorem for Hamiltonian flows on nonconvex domains. (English. French summary) Zbl 1423.37056 J. Math. Pures Appl. (9) 129, 131-152 (2019). MSC: 37J40 37J10 37J45 PDFBibTeX XMLCite \textit{A. Fonda} and \textit{A. J. Ureña}, J. Math. Pures Appl. (9) 129, 131--152 (2019; Zbl 1423.37056) Full Text: DOI arXiv
Fonda, Alessandro; Sfecci, Andrea A general method for the existence of periodic solutions of differential systems in the plane. (English) Zbl 1237.34079 J. Differ. Equations 252, No. 2, 1369-1391 (2012). Reviewer: Zhanyuan Hou (London) MSC: 34C25 34A26 PDFBibTeX XMLCite \textit{A. Fonda} and \textit{A. Sfecci}, J. Differ. Equations 252, No. 2, 1369--1391 (2012; Zbl 1237.34079) Full Text: DOI
Fabry, Christian; Fonda, Alessandro Nonlinear resonance in asymmetric oscillators. (English) Zbl 0915.34033 J. Differ. Equations 147, No. 1, 58-78 (1998). Reviewer: B.Cheshankov (Sofia) MSC: 34C25 PDFBibTeX XMLCite \textit{C. Fabry} and \textit{A. Fonda}, J. Differ. Equations 147, No. 1, 58--78 (1998; Zbl 0915.34033) Full Text: DOI
Fonda, Alessandro; Schneider, Zdenek; Zanolin, Fabio Periodic oscillations for a nonlinear suspension bridge model. (English) Zbl 0810.73030 J. Comput. Appl. Math. 52, No. 1-3, 113-140 (1994). MSC: 74H45 34C15 PDFBibTeX XMLCite \textit{A. Fonda} et al., J. Comput. Appl. Math. 52, No. 1--3, 113--140 (1994; Zbl 0810.73030) Full Text: DOI
Fonda, Alessandro On the existence of periodic solutions for scalar second order differential equations when only the asymptotic behaviour of the potential is known. (English) Zbl 0782.34047 Proc. Am. Math. Soc. 119, No. 2, 439-445 (1993). MSC: 34C25 PDFBibTeX XMLCite \textit{A. Fonda}, Proc. Am. Math. Soc. 119, No. 2, 439--445 (1993; Zbl 0782.34047) Full Text: DOI
Fabry, C.; Fonda, A. Nonlinear equations at resonance and generalized eigenvalue problems. (English) Zbl 0756.34079 Nonlinear Anal., Theory Methods Appl. 18, No. 5, 427-444 (1992). Reviewer: S.G.Zhuravlev (Moskva) MSC: 34L05 34L30 34C25 PDFBibTeX XMLCite \textit{C. Fabry} and \textit{A. Fonda}, Nonlinear Anal., Theory Methods Appl. 18, No. 5, 427--444 (1992; Zbl 0756.34079) Full Text: DOI
Fonda, A.; Lazer, A. C. Subharmonic solutions of conservative systems with nonconvex potentials. (English) Zbl 0752.34027 Proc. Am. Math. Soc. 115, No. 1, 183-190 (1992). Reviewer: Ding Tongren (Beijing) MSC: 34C25 58E05 PDFBibTeX XMLCite \textit{A. Fonda} and \textit{A. C. Lazer}, Proc. Am. Math. Soc. 115, No. 1, 183--190 (1992; Zbl 0752.34027) Full Text: DOI
Fabry, C.; Fonda, A. Periodic solutions of nonlinear differential equations with double resonance. (English) Zbl 0729.34025 Ann. Mat. Pura Appl., IV. Ser. 157, 99-116 (1990). Reviewer: P.Drábek (Plzen) MSC: 34C25 34B15 PDFBibTeX XMLCite \textit{C. Fabry} and \textit{A. Fonda}, Ann. Mat. Pura Appl. (4) 157, 99--116 (1990; Zbl 0729.34025) Full Text: DOI
Fonda, Alessandro; Habets, Patrick Periodic solutions of asymptotically positively homogeneous differential equations. (English) Zbl 0692.34041 J. Differ. Equations 81, No. 1, 68-97 (1989). Reviewer: D.Savin MSC: 34C25 PDFBibTeX XMLCite \textit{A. Fonda} and \textit{P. Habets}, J. Differ. Equations 81, No. 1, 68--97 (1989; Zbl 0692.34041) Full Text: DOI
Fonda, Alessandro; Mawhin, Jean Quadratic forms, weighted eigenfunctions and boundary value problems for nonlinear second order ordinary differential equations. (English) Zbl 0677.34022 Proc. R. Soc. Edinb., Sect. A 112, No. 1-2, 145-153 (1989). MSC: 34L99 34A34 PDFBibTeX XMLCite \textit{A. Fonda} and \textit{J. Mawhin}, Proc. R. Soc. Edinb., Sect. A, Math. 112, No. 1--2, 145--153 (1989; Zbl 0677.34022) Full Text: DOI