Results 21 to 30 of about 10,432 (131)

Existence of solutions of nonlinear fractional differential equations at resonance

Electronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper we study the existence of solutions of nonlinear fractional differential equations at resonance. By using the coincidence degree theory due to Mawhin, the existence of solutions is obtained.
Wenjuan Rui
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The Existence of Solutions for a Nonlinear Fractional Multi-Point Boundary Value Problem at Resonance

International Journal of Differential Equations, 2011
We discuss the existence of solution for a multipoint boundary value problem of fractional differential equation. An existence result is obtained with the use of the coincidence degree theory.
Xiaoling Han, Ting Wang
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Solvability of multi-point boundary value problem of nonlinear impulsive fractional differential equation at resonance

Electronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper, we investigate the existence of solutions for multi-point boundary value problems of impulsive fractional differential equations at resonance by using the coincidence degree theory due to Mawhin.
Chuanzhi Bai
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Neumann problems of superlinear elliptic systems at resonance

Electronic Journal of Qualitative Theory of Differential Equations, 2022
We prove existence of weak solutions of Neumann problem of nonhomogeneous elliptic system with asymmetric nonlinearities that may resonant at $-\infty$ and superlinear at $+\infty$.
Ruyun Ma, Zhongzi Zhao, Mantang Ma
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On existence of periodic solutions of the Rayleigh equation of retarded type

International Journal of Mathematics and Mathematical Sciences, 2000
In this paper, we give two sufficient conditions on the existence of periodic solutions of the non-autonomous Rayleigh equation of retarded type by using the coincidence degree theory.
Genqiang Wang, Jurang Yan
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Homoclinic solutions for n-dimensional p-Laplacian neutral differential systems with a time-varying delay

Advances in Difference Equations, 2018
In this paper, we investigate the existence of a set with 2kT $2kT$-periodic solutions for n-dimensional p-Laplacian neutral differential systems with a time-varying delay (φp(u(t)−Cu(t−τ))′)′+ddt∇F(u(t))+G(u(t−γ(t)))=ek(t) $(\varphi_{p}(u(t)-Cu(t-\tau ))
Fang Gao, Wenbin Chen
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The Existence of Solutions for Four-Point Coupled Boundary Value Problems of Fractional Differential Equations at Resonance

Abstract and Applied Analysis, 2014
A four-point coupled boundary value problem of fractional differential equations is studied. Based on Mawhin’s coincidence degree theory, some existence theorems are obtained in the case of resonance.
Yumei Zou, Lishan Liu, Yujun Cui
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Stability and Hopf-bifurcation analysis of an unidirectionally coupled system

Electronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper, the stability and existence of periodic solutions for an unidirectionally coupled nonlinear system with delays are investigated by combining the linear stability theory and the embedding technique of asymptotically autonomous semiflows ...
Gang Zhu, Junjie Wei
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Periodic solutions of periodic generalized food limited model

International Journal of Mathematics and Mathematical Sciences, 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
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Positive periodic solutions of a discrete mutualism model with time delays

International Journal of Mathematics and Mathematical Sciences, 2005
A discrete periodic mutualism model with time delays is investigated. By using Gaines and Mawhin's continuation theorem of coincidence degree theory, the existence of positive periodic solutions of the model is established.
Yongkun Li
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