Results 21 to 30 of about 254 (65)
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
semanticscholar +1 more source
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
semanticscholar +2 more sources
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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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
semanticscholar +2 more sources
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
doaj +1 more source
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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International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 64, Page 4057-4070, 2003., 2003 A delayed three‐species periodic food‐chain system with Holling type‐II functional response is investigated. By using Gaines and Mawhin′s continuation theorem of coincidence degree theory, a set of easily verifiable sufficient conditions is derived for the existence of positive periodic solutions to the system.
Qiming Liu, Rui Xu
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Anti-periodic solutions for a class of third-order nonlinear differential equations with a deviating argument [PDF]
, 2010 In this paper, we study a class of third-order nonlinear differential equations with a deviating argument and establish some sufficient conditions for the existence and exponential stability of anti-periodic solutions of the equation.
Fan, Qiyi +3 more
core +1 more source
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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Periodic solutions of periodic generalized food limited model
International Journal of Mathematics and Mathematical Sciences, Volume 25, Issue 4, Page 265-271, 2001., 2001 By using the continuation theorem of coincidence degree theory, the existence of positive periodic solutions for a periodic generalized food limited model with state dependent delays and distributed delays is studied, respectively.
Yongkun Li
wiley +1 more source