Mathematics
Asymptotic Stability
18%
Biological System
22%
Complex Networks
8%
Control Function
8%
Control Parameter
5%
Delay-Differential Equation
57%
Deterministic Model
10%
Differential Equation
13%
Differential Model
47%
Direct Method
5%
Discrete Time
6%
Disease Dynamic
6%
Dynamic Analysis
5%
Dynamical System
5%
Endemic Equilibrium
6%
Equilibrium Point
10%
Equilibrium Solution
6%
Experimental Data
6%
Finite Time
6%
Fixed-Time Stability
5%
Fractional Order
100%
Fractional Order Derivative
13%
Genetic Regulatory Network
8%
Global Dynamics
16%
Hopf Bifurcation
33%
Incidence Rate
16%
Initial Condition
5%
Integer
6%
Life Cycle
6%
Mathematical Modeling
40%
Neural Network
5%
Nonlinearities
5%
Numerical Example
9%
Numerical Methods
10%
Numerical Simulation
47%
Numerical Solution
10%
Optimal Control Problem
16%
Optimal Control Theory
25%
Ordinary Differential Equation
10%
Parameter Estimation
14%
Partial Differential Equation
8%
Periodic Solution
5%
Positive Solution
6%
Predator-Prey System
12%
Qualitative Behavior
5%
Random Noise
9%
Reaction-Diffusion System
8%
Reproduction Number
10%
Response Function
5%
Stability Analysis
7%
Stochastic Differential Equation
8%
Stochastics
51%
Sufficient Condition
14%
Susceptibles
6%
Time Delay
81%
Treatment Strategy
7%
Keyphrases
Allee Effect
8%
Bioscience
7%
Cell Division
5%
Cellular Interactions
6%
Coronavirus COVID-19
6%
Coronavirus Infections
5%
COVID-19 Infection
7%
Delay Differential Equations
28%
Delay Differential Model
12%
Effector Cells
5%
Fractional Order
8%
Fractional Order Delay
9%
Fractional-order Model
10%
Hepatitis C Virus Replication
6%
Immune System
5%
Interaction Delay
6%
Intracellular Delay
7%
Least Squares Approach
5%
Lyapunov Function
5%
Mathematical Model
5%
Neutral Delay Differential Equations
6%
Numerical Simulation
6%
Optimal Control
10%
Parameter Estimation
7%
Predator-prey Interactions
5%
Real Observations
5%
Sensitivity Analysis
9%
Stability Analysis
6%
System Memory
6%
Tumor Cells
6%
Tumor-immune Interaction
6%
Tumor-immune System
5%
Volterra Delay-integro-differential Equation
8%
