TY - BOOK AU - Bray, William O, TI - Journey into partial differential equations T2 - International series in mathematics SN - 9780763772567 U1 - 515.353 BRA PY - 2012/// CY - Sudbury PB - Jones & Bartlett Publishing KW - Analysis KW - Differential equations, Partial KW - Wave equation KW - Heat equation KW - Laplace transformation N1 - Includes bibliographical references and index ER -