
The paper deals with the error behaviour of A-stable one-leg integration schemes applied to the singularly perturbed differential-delayed system \(x'(t)= f(z(t))\), \(\varepsilon y'(t)= g(z(t))\) for \(t\in [0, T]\) and \(x(t)= \varphi(t)\), \(y(t)= \psi(t)\) for \(t\leq 0\), where \(z(t)= (x(t), x(t-\tau),y(t), y(t-\tau))\) and \(\varepsilon> 0\) is a small parameter.
Multistep, Runge-Kutta and extrapolation methods for ordinary differential equations, one-leg methods, Singular perturbations of functional-differential equations, differential-delayed system, Numerical approximation of solutions of functional-differential equations, A-stability, Stability and convergence of numerical methods for ordinary differential equations, Numerical methods for initial value problems involving ordinary differential equations, singular perturbation, error analysis, Error bounds for numerical methods for ordinary differential equations
Multistep, Runge-Kutta and extrapolation methods for ordinary differential equations, one-leg methods, Singular perturbations of functional-differential equations, differential-delayed system, Numerical approximation of solutions of functional-differential equations, A-stability, Stability and convergence of numerical methods for ordinary differential equations, Numerical methods for initial value problems involving ordinary differential equations, singular perturbation, error analysis, Error bounds for numerical methods for ordinary differential equations
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