Showing 1 - 10 of 45
In this paper graphical modelling is used to select a sparse structure for a multivariate time series model of New Zealand interest rates. In particular, we consider a recursive structural vector autoregressions that can subsequently be described parsimoniously by a directed acyclic graph, which...
Persistent link: https://www.econbiz.de/10010749271
Accurate modeling of pulse propagation and scattering in dispersive medium is a problem in many disciplines (i.e. electromagnetics and acoustics). The inclusion of an additional term in the wave equation (the derivative of the convolution between the causal time-domain propagation factor and the...
Persistent link: https://www.econbiz.de/10010749491
Chronic Myelogenous Leukemia under treatment is considered. Stability of equilibria is investigated and emergence of periodic …
Persistent link: https://www.econbiz.de/10011264181
The paper describes different approaches to generalize the trapezoidal method to fractional differential equations. We analyze the main theoretical properties and we discuss computational aspects to implement efficient algorithms. Numerical experiments are provided to illustrate potential and...
Persistent link: https://www.econbiz.de/10011264185
In the stability study of nonlinear systems, not to found feasible solution for the LMI problem associated with a … quadratic Lyapunov function shows that it doesn’t exist positive definite quadratic Lyapunov function that proves stability of … for global asymptotic stability of analytical nonlinear systems are proposed to allow computational implementation. …
Persistent link: https://www.econbiz.de/10010869927
In this paper, a new method is adopted to construct a Lyapunov function for the endemic equilibrium of the J. Mena-Lorca and H.W. Hothcote’s SIRS epidemic model with bilinear incidence and constant recruitment. On the basis of the Lyapunov function, the domain of the attraction of the endemic...
Persistent link: https://www.econbiz.de/10010869930
This paper deals with the study of stability and estimation of stability domain for a class of nonlinear integro …-difference equations, which coincide with special class of neutral type functional differential equations. The new approach for stability …
Persistent link: https://www.econbiz.de/10010869983
In this work, a combination of numerical methods applied to thermohydrodynamic lubrication problems with cavitation is presented. It should be emphasized the difficulty of the nonlinear mathematical coupled model involving a free boundary problem, but also the simplicity of the algorithms...
Persistent link: https://www.econbiz.de/10010870011
In this paper, a new approach is suggested to investigate stability in a family of fractional order linear time … same stability property as the fractional order system. In this way, instead of performing the stability analysis on the … understood. As a useful consequence, we have extended two general tests for robust stability check of ordinary systems to …
Persistent link: https://www.econbiz.de/10010870049
stability of this method and present some numericals experiments using synthetic data. …
Persistent link: https://www.econbiz.de/10010870125