Gupta, Chaitan P.; Nieto, Juan J.; Sanchez, Luis Periodic solutions of some Lienard and Duffing equations. (English) Zbl 0689.34032 J. Math. Anal. Appl. 140, No. 1, 67-82 (1989). The problem of existence of periodical solutions of differential equations of the form \[ (1)\quad u''+f(u)u'+g(t,u)=0,\quad u(0)=u(2\pi),\quad u'=u'(2\pi), \] where f(u) is a continuous function on \({\mathbb{R}}\) and g(t,u) is a Caratheodory function subject to certain growth restrictions, is considered. Several existence theorems providing the periodic solutions of (1) in resonance and some other particular cases (i.e. for \(f(u)=const\), f(u)\(\equiv 0\) etc.) are proved. Reviewer: S.G.Zhuravlev Cited in 12 Documents MSC: 34C25 Periodic solutions to ordinary differential equations 34G10 Linear differential equations in abstract spaces Keywords:Caratheodory function PDF BibTeX XML Cite \textit{C. P. Gupta} et al., J. Math. Anal. Appl. 140, No. 1, 67--82 (1989; Zbl 0689.34032) Full Text: DOI References: [1] Bebernes, J.; Martelli, On the structure of the solution set for periodic boundary value problems, Nonlinear Anal., 4, 821-830 (1980) · Zbl 0453.34019 [2] Cesari, L., Functional analysis, nonlinear differential equations and the alternative methods, (Cesari, L.; Kannan, R.; Schuur, D., Nonlinear Functional Analysis and Differential Equations (1976), Dekker: Dekker New York), 1-196 [3] Cesari, L.; Kannan, R., An abstract existence theorem at resonance, (Proc. Amer. Math. Soc., 63 (1977)), 221-225 · Zbl 0361.47021 [4] Cesari, L.; Bowman, T. T., Existence of solutions to nonself-adjoint boundary value problems for ordinary differential equations, Nonlinear Anal., 9, 1211-1225 (1985) · Zbl 0569.34014 [5] Gossez, J. P., Some nonlinear differential equations with resonance at the first eigenvalue, (Conf. Sem. Mal. Univ. Bari, 167 (1979)) · Zbl 0438.35058 [6] Gupta, C., On functional equations of Fredholm and Hammerstein type with applications to existence of periodic solutions of certain ordinary differential equations, J. Intregral Equations, 3, 21-41 (1981) · Zbl 0457.34040 [7] Gupta, C.; Mawhin, J., Asymptotic conditions at the two first eigenvalues for the periodic solutions of Lienard differential equations and an inequality of E. Schmidt, Z. Anal. Anwendungen, 3, 33-42 (1984), 3 (1984) · Zbl 0546.34031 [8] Kannan, R.; Lakshmikanthan, B., Periodic solutions of nonlinear boundary value problems, Nonlinear Anal., 6, 1-10 (1982) [9] Landesman, E. M.; Lazer, A. C., Nonlinear perturbations of a linear elliptic boundary value problem at resonance, J. Math. Mech., 19, 609-623 (1970) · Zbl 0193.39203 [10] Mawhin, J., Landesman-Lazer’s type problems for nonlinear equations, (Conf. Sem. Math. Univ. Bari, 147 (1977)) · Zbl 0436.47050 [11] Mawhin, J.; Ward, J. R., Nonuniform nonresonance conditions at the two first eigenvalues for periodic solutions of forced Lienard and Duffing equations, Rocky Mountain J. Math., 12, 643-654 (1982) · Zbl 0536.34022 [12] Nieto, J. J., Periodic solutions of nonlinear parabolic equations, Rocky Mountain J. Math., 12, 643-654 (1982) · Zbl 0536.34022 [13] Nieto, J. J., Periodic solutions of nonlinear parabolic equations, J. Differential Equations, 60, 90-102 (1985) · Zbl 0537.35049 [14] Nieto, J. J.; Rao, V. Hari, Periodic solutions for scalar Lienard equations, Acta Math. Hung., 48, 59-66 (1986) · Zbl 0615.34036 [15] Reissig, R., Schwingungssatze fur die verallgemeinerte Lienardsche Differentialgleichung, Math. Abh. Hamburg, 44, 45-51 (1975) · Zbl 0323.34033 [16] Tersian, S., On the periodic problem for the equation \(u″ + g(x(t)) = ƒ(t)\), Funkcial. Ekvac., 28, 39-46 (1985) · Zbl 0579.34031 This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. It attempts to reflect the references listed in the original paper as accurately as possible without claiming the completeness or perfect precision of the matching.