Abstract and Applied Analysis
Volume 5 (2000), Issue 3, Pages 191-206
doi:10.1155/S108533750000035X

Positive global solutions for a general model of size-dependent population dynamics

Abstract

We study size-structured population models of general type which have the growth rate depending on the size and time. The local existence and uniqueness of the solution have been shown by Kato and Torikata (1997). Here, we discuss the positivity of the solution and global existence as well as L ∞ solutions.