فهرس المقالات ‎G‎ompound matrices

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  1 - Stability ‎a‎nalysis of the transmission dynamics of an HBV model
  R. Akbari A. Vahidian Kamyad A. A. Heydari A. Heydari
  ‎Hepatitis B virus (HBV) infection is a major public health problem in the world today‎. ‎A mathematical model is formulated to describe the spread of hepatitis B‎, ‎which can be controlled by vaccination as well as treatment‎. ‎We study the أکثر

  ‎Hepatitis B virus (HBV) infection is a major public health problem in the world today‎. ‎A mathematical model is formulated to describe the spread of hepatitis B‎, ‎which can be controlled by vaccination as well as treatment‎. ‎We study the dynamical behavior of the system with fixed control for both vaccination and treatment‎. ‎The results shows that the dynamics of the model is completely determined by the basic reproductive number R_0. ‎if R_0<1, ‎the disease-free equilibrium is globally asymptotically stable by using approach that given by Kamgang and Sallet‎. ‎Then the authors prove that if R_0>1, ‎the disease-free equilibrium is unstable and the disease is uniformly persistent‎. ‎Furthermore‎, ‎If R_0>1, ‎the unique endemic equilibrium is globally asymptotically stable by using a generalization of the Poincar e-Bendixson ‎criterion.‎ تفاصيل المقالة