“…Hence system (2.5) is dissipative with the asymptotic bound L/c. This ensures the existence of a compact neighbourhood which is a proper subset of R 2 + such that for sufficiently large initial conditions (x 0 , y 0 ) the trajectories of the system of equations (2.5) will always be within the set .…”
Section: Lemmamentioning
confidence: 99%
“…where A denotes the coefficient matrix of linear part with zero as the main diagonal elements; B(u, v), C(u, v, w) are symmetric multi-linear vector functions of u 2 and take the following forms: where the c ij (i = 1, 2; j = 1, 2, 3, 4) are given by…”
Section: Behaviour Around E 1 and E *mentioning
confidence: 99%
“…Let be the set defined by = [(t t 0 ) × R 2 , t 0 ∈ R + ]. Let V ∈ C 2 ( ) be a twice differentiable function of time t. We define the following theorem due to Afanas'ev et al [2].…”
Section: Stochastic Stability Of Interior Equilibriummentioning
The present paper deals with a problem of a ratio-dependent predator-prey model. The deterministic and stochastic behaviour of the model system around biologically feasible equilibria are studied. Conditions for which the deterministic model enter into Hopf-bifurcation are worked out. Stochastic stability of the system around positive interior equilibrium is studied. To substantiate our analytical findings numerical simulations are carried out for hypothetical set of parameter values.
“…Hence system (2.5) is dissipative with the asymptotic bound L/c. This ensures the existence of a compact neighbourhood which is a proper subset of R 2 + such that for sufficiently large initial conditions (x 0 , y 0 ) the trajectories of the system of equations (2.5) will always be within the set .…”
Section: Lemmamentioning
confidence: 99%
“…where A denotes the coefficient matrix of linear part with zero as the main diagonal elements; B(u, v), C(u, v, w) are symmetric multi-linear vector functions of u 2 and take the following forms: where the c ij (i = 1, 2; j = 1, 2, 3, 4) are given by…”
Section: Behaviour Around E 1 and E *mentioning
confidence: 99%
“…Let be the set defined by = [(t t 0 ) × R 2 , t 0 ∈ R + ]. Let V ∈ C 2 ( ) be a twice differentiable function of time t. We define the following theorem due to Afanas'ev et al [2].…”
Section: Stochastic Stability Of Interior Equilibriummentioning
The present paper deals with a problem of a ratio-dependent predator-prey model. The deterministic and stochastic behaviour of the model system around biologically feasible equilibria are studied. Conditions for which the deterministic model enter into Hopf-bifurcation are worked out. Stochastic stability of the system around positive interior equilibrium is studied. To substantiate our analytical findings numerical simulations are carried out for hypothetical set of parameter values.
In this paper, we present an SIRS (Susceptible, Infective, Recovered, Susceptible) epidemic model with a saturated incidence rate and disease causing death in a population of varying size. We define a parameter ℜ
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