Keywords: راه حل مثبت دوره ای; 34K13; 34K20; 92D25; Delay differential equation; Periodic Nicholson system; Positive periodic solution; Schauder fixed point theorem; Permanence;
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Keywords: راه حل مثبت دوره ای; 35B40; 35K57; 92D25; Positive periodic solution; Stability; Principal eigenvalue; Degeneracy;
Keywords: راه حل مثبت دوره ای; Neutral equations; Fixed point; First-order; Positive periodic solution;
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Existence; Nonlinear; Integro-differential equation; Exponential stability; Banach space
Keywords: راه حل مثبت دوره ای; 35K57; 37C65; 37N25; 92D25Reaction–advection–diffusion model; Spreading speeds; Periodic traveling waves; Positive periodic solution; Global stability
Keywords: راه حل مثبت دوره ای; Predator-prey model; Functional response; Positive periodic solution; Generalized continuation theorem;
Keywords: راه حل مثبت دوره ای; Diffusion; Harvesting; Positive periodic solution; Global attractivity; Rate of convergence; Logistic law; Gilpin-Ayala growth; Gompertz function; Maximal yield;
Global exponential stability of positive periodic solutions for a delayed Nicholsonʼs blowflies model
Keywords: راه حل مثبت دوره ای; Global exponential stability; Time-varying delay; Positive periodic solution; Nicholsonʼs blowflies model;
Positive periodic solutions of n-species neutral delayed Lotka–Volterra competition system with impulsive perturbations
Keywords: راه حل مثبت دوره ای; Neutral competition system; Impulsive perturbations; Competition exclusion; Positive periodic solution; Coincidence degree
On a non-selective harvesting prey–predator model with Hassell–Varley type functional response
Keywords: راه حل مثبت دوره ای; Non-selective harvesting; Positive periodic solution; Hassell–Varley type functional response; Coincidence degree theory
Functional differential inclusions and dynamic behaviors for memristor-based BAM neural networks with time-varying delays
Keywords: راه حل مثبت دوره ای; Memristor; Functional differential inclusions; BAM neural networks; Krasnoselskii’s fixed point theorem of set-valued maps; Global dissipativity; Positive periodic solution
Periodic solution generated by impulses for singular differential equations
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Singular differential equations; Impulses; Variational methods
Permanence and periodic solutions for a class of delay Nicholson’s blowflies models
Keywords: راه حل مثبت دوره ای; Nicholson’s blowflies model; Permanence; Positive periodic solution; Coincidence degree; Nonlinear density-dependent mortality term
The positive periodic solution for Nicholson-type delay system with linear harvesting terms
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Nicholson-type delay system; Linear harvesting term; Coincidence degree
Dynamical behaviors for discontinuous and delayed neural networks in the framework of Filippov differential inclusions
Keywords: راه حل مثبت دوره ای; Discontinuous neuron activation; Differential inclusions; Delayed neural networks; Krasnoselskii’s fixed point theorem of set-valued maps; Positive periodic solution; Global convergence
Sharp spatiotemporal patterns in the diffusive time-periodic logistic equation
Keywords: راه حل مثبت دوره ای; 35K20; 35B10; 35K57; 35B36Degenerate logistic equation; Positive periodic solution; Asymptotic behavior; Spatiotemporal pattern
On positive periodic solution for the delay Nicholson’s blowflies model with a harvesting term
Keywords: راه حل مثبت دوره ای; Delays; Nicholson’s blowflies; Positive periodic solution; Krasnoselskii fixed point theorem
Higher order functional differential systems with parameter dependence
Keywords: راه حل مثبت دوره ای; High order functional differential systems; Fixed point index; Positive periodic solution; Existence and nonexistence;
Periodicity and stability in a single-species model governed by impulsive differential equation
Keywords: راه حل مثبت دوره ای; Impulsive single-species model; Positive periodic solution; Brouwer’s fixed point theorem; Lyapunov function
Positive periodic solutions for a class of delay differential equations
Keywords: راه حل مثبت دوره ای; Delay differentiable equation; Functional equation; Positive periodic solution
Existence of positive periodic solution of n-dimensional Lotka–Volterra system with delays
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Lotka–Volterra system with delays; Coincidence degree theory; M matrix
Existence and global attractivity of positive periodic solution for a Volterra model with mutual interference and Beddington-DeAngelis functional response
Keywords: راه حل مثبت دوره ای; Volterra model; Mutual interference; Beddington-DeAngelis functional response; Positive periodic solution; Global attractivity;
Existence of positive periodic solutions for higher-order ordinary differential equations
Keywords: راه حل مثبت دوره ای; nnth-order differential equation; Positive periodic solution; Cone; Fixed point theorem in cones
Multiple periodic solutions for a non-autonomous delayed predator–prey model with harvesting terms
Keywords: راه حل مثبت دوره ای; Predator–prey model; Functional response; Positive periodic solution; Generalized continuation theorem
Existence and global attractivity of a positive periodic solution to a Lotka–Volterra model with mutual interference and Holling III type functional response
Keywords: راه حل مثبت دوره ای; Global attractivity; Mawhin’s coincidence theorem; Positive periodic solution; Lyapunov functional; Holling III type functional response
Positive periodic solution for a neutral Logarithmic population model with feedback control
Keywords: راه حل مثبت دوره ای; Neutral Logarithmic population model; Feedback control; Positive periodic solution; Global asymptotically stability;
The periodic solutions for general periodic impulsive population systems of functional differential equations and its applications
Keywords: راه حل مثبت دوره ای; Impulsive population system; Kolmogorov system; Positive periodic solution; Horn’s fixed point theorem; Ultimate boundedness; Permanence
Stability and bifurcation analysis in hematopoietic stem cell dynamics with multiple delays
Keywords: راه حل مثبت دوره ای; HSCs; Global asymptotical stability; Hopf bifurcation; Positive periodic solution;
A note on positive periodic solutions of delayed differential equations
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Existence; Fixed index theorem
Existence of positive periodic solutions for neutral multi-delay logarithmic population model
Keywords: راه حل مثبت دوره ای; Neutral multi-delay logarithmic population model; Existence; k-Set contractive operator; Positive periodic solution;
Positive periodic solutions for fully third-order ordinary differential equations
Keywords: راه حل مثبت دوره ای; Fully third-order ODEs; Positive periodic solution; Cone; Fixed point theorem in cones
Periodic solution and global stability for a nonautonomous competitive Lotka-Volterra diffusion system
Keywords: راه حل مثبت دوره ای; Global stability; Positive periodic solution; Competitive system;
Existence and global attractivity of positive periodic solution to a Lotka–Volterra model
Keywords: راه حل مثبت دوره ای; Global attractivity; Mawhin’s construction theorem; Positive periodic solution; Lyapunov functional; Holling III type functional response
Existence of positive periodic solutions for a nonautonomous neutral delay n-species competitive model with impulses
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Neutral; Competitive model; Impulse
Impulsive perturbations in a periodic delay differential equation model of plankton allelopathy
Keywords: راه حل مثبت دوره ای; Delay; Impulse; Permanence; Extinction; Positive periodic solution
Multiplicity of periodic solutions for a delayed ratio-dependent predator-prey model with Holling type III functional response and harvesting terms
Keywords: راه حل مثبت دوره ای; Predator-prey model; Functional response; Positive periodic solution; Generalized continuation theorem
The existence of multiple positive periodic solutions for functional differential equations
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Fixed point index; Cone
A periodic predator–prey-chain system with impulsive perturbation
Keywords: راه حل مثبت دوره ای; Predator–prey chain; Bifurcation; Impulsive perturbation; Positive periodic solution; Noncritical solution
Existence and uniqueness of positive periodic solutions for Rayleigh type pp-Laplacian equation
Keywords: راه حل مثبت دوره ای; pp-Laplacian; Rayleigh equation; Positive periodic solution; Coincidence degree
Existence of positive periodic solution for ratio-dependent N-species difference system
Keywords: راه حل مثبت دوره ای; Ratio-dependent predator–prey system; Positive periodic solution; Difference equation; Coincidence degree
Existence and global asymptotic stability of positive periodic solution for a Predator–Prey system with mutual interference
Keywords: راه حل مثبت دوره ای; Predator–Prey system; Mutual interference; Positive periodic solution; Global asymptotic stability; Mawhin’s coincidence degree theorem; Lyapunov functional
Periodic solutions in a delayed predator–prey model with nonmonotonic functional response
Keywords: راه حل مثبت دوره ای; Predator–prey model; Nonmonotonic functional response; Positive periodic solution; Coincidence degree
Existence and multiplicity of positive periodic solutions for a class of higher-dimension functional differential equations with impulses
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Functional differential equations; Impulse; The Krasnoselskii fixed point theorem
Existence and uniqueness of positive periodic solutions for a neutral Logarithmic population model
Keywords: راه حل مثبت دوره ای; Neutral Logarithmic population model; k-Set contractive operator; Positive periodic solution; Existence and global attractivity;
Existence results on positive periodic solutions of forced functional difference equations and applications
Keywords: راه حل مثبت دوره ای; Functional difference equation; Positive periodic solution; Cone; Fixed point theorem
Existence of positive periodic solutions for two kinds of neutral functional differential equations
Keywords: راه حل مثبت دوره ای; Neutral functional differential equation; Existence; Positive periodic solution; Fixed-point theorem
Positive periodic solutions for neutral functional differential equations with distributed delays and feedback control
Keywords: راه حل مثبت دوره ای; Positive periodic solution; Neutral functional differential equation; Feedback control; Strict-set-contraction
Multiple positive periodic solutions for a class of nonlinear functional differential equations
Keywords: راه حل مثبت دوره ای; Positive periodic solution; State-dependent delay; Fixed point theorem;
Existence of positive periodic solutions for a generalized Nicholson’s blowflies model
Keywords: راه حل مثبت دوره ای; Nicholson’s blowflies; Positive periodic solution; Cone fixed point theorem
On the existence of positive periodic solutions to a Lotka Volterra cooperative population model with multiple delays
Keywords: راه حل مثبت دوره ای; 34C25; 34K40Cooperative population model; Mawhin’s continuation theorem; Positive periodic solution