TY - GEN AU - McOwen,Robert C. TI - Partial differential equations: methods and applications SN - 8129705168 U1 - 517.383 PY - 2003/// CY - Delhi PB - Pearson Education KW - Calculus KW - Partial KW - First-order equations KW - Principles for higer-order equations KW - The wave equation KW - The laplace equation ER -