Positive almost periodic solutions for a class of nonlinear Duffing equations with a deviating argument.

Peng, Lequn; Wang, Wentao

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Displaying similar documents to “Positive almost periodic solutions for a class of nonlinear Duffing equations with a deviating argument.”

Anti-periodic solutions for a class of third-order nonlinear differential equations with a deviating argument.

Fan, Qiyi, Wang, Wentao, Yi, Xuejun, Huang, Lihong (2010)

Electronic Journal of Qualitative Theory of Differential Equations [electronic only]

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A further discussion on Galambos problem.

Shen, Lu-ming, Liu, Yue-hua, Zhou, Yu-yuan (2007)

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Periodic trajectories for evolution equations in Banach spaces.

Voisei, Mircea D. (2005)

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Almost periodic solutions with a prescribed spectrum of linear and quasilinear differential equations with almost periodic coefficients and constant time lag (Neutral differential equations)

Alexandr Fischer (2012)

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The paper is the extension of the author's previous papers and solves more complicated problems. Almost periodic solutions of a certain type of almost periodic linear or quasilinear systems of neutral differential equations are dealt with.

Nonexistence of nontrivial periodic solutions to a class of nonlinear differential equations of eighth order.

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On a nonlinear second order periodic boundaryvalue problem with Carathéodory functions

Wenjie Gao, Junyu Wang (1995)

Annales Polonici Mathematici

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The periodic boundary value problem u''(t) = f(t,u(t),u'(t)) with u(0) = u(2π) and u'(0) = u'(2π) is studied using the generalized method of upper and lower solutions, where f is a Carathéodory function satisfying a Nagumo condition. The existence of solutions is obtained under suitable conditions on f. The results improve and generalize the work of M.-X. Wang et al. [5].

Conditions of existence quasiperiodic solutions for some nonlinear differential equations of second order and third power

Marija Kujumdzieva-Nikoloska, Jordanka Mitevska (2005)

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Olufemi Adeyinka Adesina (2004)

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Monotone iterative techniques and a periodic boundary value problem for first-order differential equations with a functional argument.

Qi, Aiqin, Liu, Yansheng (2000)

Georgian Mathematical Journal

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On minimal periods of functional-differential equations and difference inclusions

M. Medveď (1991)

Annales Polonici Mathematici

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We prove several results on lower bounds for the periods of periodic solutions of some classes of functional-differential equations in Hilbert and Banach spaces and difference inclusions in Hilbert spaces.

Monotone method for nonlinear second order periodic boundary value problems with Carathéodory functions

Ming-Xing Wang, Alberto Cabada, Juan J. Nieto (1993)

Annales Polonici Mathematici

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The purpose of this paper is to study the periodic boundary value problem -u''(t) = f(t,u(t),u'(t)), u(0) = u(2π), u'(0) = u'(2π) when f satisfies the Carathéodory conditions. We show that a generalized upper and lower solution method is still valid, and develop a monotone iterative technique for finding minimal and maximal solutions.