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Stability of an SEIR epidemic model with indepenent stochastic perturbations
(Elsevier, 2013)
For an epidemic model of the type mentioned, we prove a theorem on almost sure exponential
stability of the disease-free equilibrium. For small values of the diffusion parameter,
σ, we describe the stability of the disease ...
The fibre of a pinch map in a model category
(Springer Verlag, 2013)
In the category of pointed topological spaces, let F be the homotopy fibre of the
pinching map X ∪ CA → X ∪ CA/ X from the mapping cone on a cofibration A → X
onto the suspension of A. Gray (Proc Lond Math Soc (3) ...
A model for control of HIV/AIDS with parental care
(World Scientific Publishing, 2013)
In this study we investigate the HIV/AIDS epidemic in a population which experiences
a significant flow of immigrants. We derive and analyze a mathematical model that
describes the dynamics of HIV infection among the ...
Multiplication of Crowns
(Instituto de Matematica de Bahia Blanca (INMABB-CONICET), 2013)
It is known that the only nite topological spaces that are H-spaces are the discrete spaces. For a nite poset which is weakly equivalent to an H-space, a generalized multiplication may be found after suitable ...