TY - BOOK AU - Forsyth,Andrew Russell TI - Theory of differential equations U1 - 517.38 PY - 1959/// CY - New York PB - Dover pub. KW - Differential equations N1 - Contents: v. 1. Exact equations and Pfaff's problem. -- v. 2. Ordinary equations, not linear. -- v. 3. Ordinary equations, not linear. -- v. 4. Ordinary linear equations. -- v. 5. & v. 6. Partial differential equations ER -