1. Difference Equations and Inequalities;Agarwal,1992
2. Numerical Methods for Partial Differential Equations;Ames,1992
3. Nonlinear diffusion in population genetics, combustion, and nerve propagation;Aronson,1975
4. Nonnegative Matrix in the Mathematical Science;Berman,1979
5. Finite Difference Methods for Partial Differential Equations;Forsythe,1964