TY - BOOK AU - Schechter,Martin TI - Spectra of partial differential operators T2 - North-Holland series in applied mathematics and mechanics SN - 0444101098 PY - 1971/// CY - Amsterdam PB - North-Holland KW - Partial differential operators KW - Spectral theory (Mathematics) N1 - Bibliographyp.260-264. _ Includes index ER -