부산대학교 도서관

A pair of rection-diffusion equations are studied by analytical and numerical methods, and the results are compared qualitatively to several embryological problems. Analytical results consist of straightforward linear stability analysis of the characteristic solutions of the linearized equations. Numerical solutions, obtained by the ``hopscotch'' method, are presented which show, among other things, that there are no simple rules relating the symmetry of the final solution to that of the initial perturbation. The computed solutions are compared, metaphorically, with compartmentation in {\it Drosophila\/} imaginal discs, development of tunicate eggs, and waves of cell division in early sea urchin embryos.