TY - JOUR T1 - A Semigroup Approach to Nonlinear Equation of Age-dependent Population Dynamics AU - Qin Tiehu, Zhang Kangpei JO - Journal of Partial Differential Equations VL - 2 SP - 1 EP - 16 PY - 1992 DA - 1992/05 SN - 5 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/jpde/5733.html KW - Nonlinear population equation KW - nonautonomous equation KW - nonlinear evolution operators AB - This paper deals with nonlinear model, of age-dependent population dynamics, with nonautonomous time dependence. Using a nonlinear semigroup approach, the authors prove the existence of the problem under general assumptions.