Results 11 to 20 of about 89 (44)
Multiple periodic solutions in shifts δ± for an impulsive functional dynamic equation on time scales
Advances in Differential Equations, 2014 In this paper, based on the theory of calculus on time scales, by using a multiple fixed point theorem in cones, some criteria are established for the existence and multiplicity of positive periodic solutions in shifts δ± for an impulsive functional ...
Meng Hu, Lili Wang
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Boundary Value Problems, 2013 We consider T-periodic parametrized retarded functional differential equations, with infinite delay, on (possibly) noncompact manifolds. Using a topological approach, based on the notions of degree of a tangent vector field and of the fixed point index ...
Pierluigi Benevieri +3 more
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Advances in Differential Equations, 2014 In this paper, by using an integral inequality, we establish some sufficient conditions ensuring the existence and p-exponential stability of periodic solutions for a class of stochastic shunting inhibitory cellular neural networks (SICNNs) with ...
Li Yang, Yongkun Li
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EXISTENCE OF MULTIPLE POSITIVE RADIAL SOLUTIONS TO ELLIPTIC EQUATIONS IN AN ANNULUS
Communications in Applied Analysis, 2018 In this paper, we use Leggett-Williams multiple fixed point theorems to obtain sufficient conditions for the existence of at least one or two positive radial solutions of the equation −∆u = λg(|x|)f(u), R1 < |x| < R2, x ∈ RN , N ≥ 2 subject to a linear ...
Jaffar Ali, S. Padhi
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Stability Analysis of Periodic Solutions of Some Duffing’s Equations
Open Journal of Applied Sciences, 2019 In this paper, some stability results were reviewed. A suitable and complete Lyapunov function for the hard spring model was constructed using the Cartwright method.
E. Eze, U. E. Obasi, E. U. Agwu
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Open Mathematics, 2019 Overf the last few years, by utilizing Mawhin’s continuation theorem of coincidence degree theory and Lyapunov functional, many scholars have been concerned with the global asymptotical stability of positive periodic solutions for the non-linear ...
Han Sufang +4 more
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Existence and uniqueness of a positive periodic solution for Rayleigh type ϕ-Laplacian equation
Advances in Differential Equations, 2014 By using the Manásevich-Mawhin continuation theorem and some analysis skills, we establish some sufficient condition for the existence and uniqueness of positive T-periodic solutions for a generalized Rayleigh type ϕ-Laplacian operator equation.
Yun Xin, Zhibo Cheng
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Open Mathematics, 2016 The paper deals with the existence of positive ω-periodic solutions for a class of nonlinear delay differential equations. For example, such equations represent the model for the survival of red blood cells in an animal. The sufficient conditions for the
Dorociaková Božena, Olach Rudolf
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Advances in Differential Equations, 2014 Sufficient conditions are presented for the existence of positive periodic solutions for a third-order nonlinear differential equation with singularity. Besides, an example is given to illustrate the results. MSC:34K13, 34B16, 34B18.
Zhibo Cheng
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Advances in Differential Equations, 2014 In this paper, we study the existence and stability of positive periodic solutions for an n-species Lotka-Volterra system with deviating arguments, xi′(t)=xi(t)(biri(t)−aii(t)xi(t−τii(t))−∑j=1,j≠inkijaij(t)xj(t−τij(t))), i=1,2,…,n, referred to as (E). By
Yan Xu, Zhimin He
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