TY - BOOK AU - Esser,Martinus TI - Differential equations U1 - 517/.38 PY - 1968/// CY - Philadelphia PB - W.B. Saunders KW - Differential equations N1 - includes index ; 1. Linear differential equations 2. Linear equations with constant coefficients 3. Numerical methods and series 4. The picard existence theorems 5. Implicit solutions of first order equations 6. Topics related to first order equations 7. Algebra of operators 8. Applications ER -