Results 81 to 90 of about 1,108 (132)
Existence and uniqueness of positive periodic solution for ϕ-Laplacian Liénard equation
By applying the Manásevich-Mawhin continuation theorem, we establish some sufficient conditions for the existence and uniqueness of positive periodic solutions for the Liénard type ϕ-Laplacian operator equation.MSC: 34K13, 34C25.
Yun Xin, Xuefeng Han, Zhibo Cheng
semanticscholar +1 more source
New Periodic Solutions for Some Planar $N+3$-Body Problems with Newtonian Potentials [PDF]
For some planar Newtonian $N+3$-body problems, we use variational minimization methods to prove the existence of new periodic solutions satisfying that $N$ bodies chase each other on a curve, and the other 3 bodies chase each other on another curve. From
Yuan, Pengfei, Zhang, Shiqing
core
Almost periodic solution of a discrete competitive system with delays and feedback controls
A discrete nonlinear almost periodic multispecies competitive system with delays and feedback controls is proposed and investigated. We obtain sufficient conditions to ensure the permanence of the system.
Xue Yalong, Xie Xiangdong, Lin Qifa
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This paper is concerned with a competition and cooperation model of two enterprises with multiple delays and feedback controls. With the aid of the difference inequality theory, we have obtained some sufficient conditions which guarantee the permanence ...
Lu Lin, Lian Yi, Li Chaoling
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We show the existence of unbounded connected components of 2π-periodic positive solutions for the equations with one-dimensional Minkowski-curvature operator −u′1−u′2′=λa(x)f(u,u′),x∈R, $-{\left(\frac{{u}^{\prime }}{\sqrt{1-{u}^{\prime 2}}}\right ...
Ma Ruyun, Zhao Zhongzi, Su Xiaoxiao
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Infinitely many periodic solutions for ordinary p-Laplacian systems
Some existence theorems are obtained for infinitely many periodic solutions of ordinary p-Laplacian systems by minimax methods in critical point theory.
Li Chun, Agarwal Ravi P., Tang Chun-Lei
doaj +1 more source
A Lotka-Volterra type predator-prey system with Allee effect on the predator species and density dependent birth rate on the prey species is proposed and studied.
Chen Fengde +3 more
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Positive Periodic Solution for Second-Order Nonlinear Differential Equations with Variable Coefficients and Mixed Delays. [PDF]
Dai Z, Du B.
europepmc +1 more source
High Multiplicity and Chaos for an Indefinite Problem Arising from Genetic Models
We deal with the periodic boundary value problem associated with the parameter-dependent second-order nonlinear differential ...
Boscaggin Alberto +2 more
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Steady-state solutions for the Muskat problem. [PDF]
Sánchez O.
europepmc +1 more source

