BackBrowsing by Subject "ALGEBRA AND NUMBER THEORY"
Now showing items 1-4 of 4
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An observer-based vaccination control law for an SEIR epidemic model based on feedback linearization techniques for nonlinear systems
; De la Sen Parte, Manuel
; Agarwal, A.; Ibeas Hernández, Asier (Springer, 2012-09)
This paper presents a vaccination strategy for fighting against the propagation of epidemic diseases. The disease propagation is described by an SEIR (susceptible plus infected plus infectious plus removed populations) ... -
Geometric multiplicity margin for a submatrix
(Elsevier, 2002-07)Let G be a square complex matrix with less than k nonconstant invariant factors. We find a complex matrix that gives an optimal approximation to G among all possible matrices that have more than or equal to k invariant ... -
On a Generalized Time-Varying SEIR Epidemic Model with Mixed Point and Distributed Time-Varying Delays and Combined Regular and Impulsive Vaccination Controls
De la Sen Parte, Manuel; Agarwal, A.; Ibeas Hernández, Asier ; (Hindawi Publishing Corporation, 2010)
This paper discusses a generalized time-varying SEIR propagation disease model subject to delays which potentially involves mixed regular and impulsive vaccination rules. The model takes also into account the natural ... -
Stability analysis and observer design for discrete-time SEIR epidemic models
Ibeas Hernández, Asier; De la Sen Parte, Manuel ; ; Zamani, Iman (Springer International Publishing, 2015-04-17)
This paper applies Micken's discretization method to obtain a discrete-time SEIR epidemic model. The positivity of the model along with the existence and stability of equilibrium points is discussed for the discrete-time ...