Abstract: | Summary An initial and boundary value problem for a system of first order linear partial differential equations is studied. This problem arises in cell biology, when the evolution of a homogeneous cell population is modelled. Some existence, uniqueness and regularity results are proven; an estimate for the growth of the cell population is also obtained.This work was in part supported by the Istituto di Analisi Numerica of the C.N.R. in Pavia (Italy), the G.N.A.F.A. of the C.N.R. (Italy) and the Ministero della Pubblica Istruzione (Italy). |