We developed a dengue epidemic model by considering hospitalized class and harmonic
mean incidence rate. A qualitative study of the proposed model was conducted. The Basic …

Smoking has gradually become a very common behavior, and the related situation in
different groups also presents different forms. Due to the differences of individual smoking …

An age-structured vector-borne disease model with horizontal transmission is proposed and
studied in this paper, where the incubation ages of both host and vector and the immunity …

Smoking is a serious global public health problem. The ability to quit smoking is closely
related to age; in addition, personal determination and education usually play an important …

We study a smoking dynamical model with two types of smokers: beginners and heavy
smokers. The qualitative behavior of the model, such as the stability of the equilibrium points …