TY - BOOK AU - Holland,Samuel S. TI - Applied analysis by the Hilbert space method: an introduction with applications to the wave, heat, and Schr?dinger equations SN - 0824782593 PY - 1990/// CY - New York, N.Y. PB - M. Dekker KW - Differential equations KW - Hilbert space KW - Differential operators N1 - Includes bibliographical references and index; First order linear differential equations--Second order linear differential equations--Hilbert space ER -