The Cauchy problem for the system of equations describing migration motivated by regional economic disparity. - Minoru Tabata; Nobuoki Eshima; Ichiro Takagi; Takashi Hiroyama (Appl. Math. Comput., 1998)

The nonlinear integro-partial differential equation describing the logistic growth of human population with migration. - Minoru Tabata; Nobuoki Eshima; Ichiro Takagi (Appl. Math. Comput., 1999)

An infinite continuous model which derives from a finite discrete model describing the time evolution of the density of firms. - Minoru Tabata; Nobuoki Eshima; Ichiro Takagi (Appl. Math. Comput., 2002)