01005cam a22003134a 4500 AR-SsjUIB 20250716140233.0 250429s1971 ne 000 0 eng d 072042366X AR-SsjUIB AR-SsjUIB eng ne 517.4 Schechter, Martín 15328 Spectra of partial differential operators. Amsterdam : North-Holland, 1971. North-Holland series in applied mathematics and mechanics V.14 Bibliografía en p.260-264;Contiene xii,268 p. Cálculo diferencial lemb 415 Diferenciacion parcial lemb 15329 Operadores diferenciales parciales lemb 15330 Operadores elipticos lemb 15086 Teoría espectral (matemáticas) lemb 15332 Libro unescot 14 LB cdu dbfi 1998-09-21.-2022-07-08 12603 12603 0 0 cdu 0 0 ING ING 1978-03-30 Compra - Carlos Hirsch 19.25 4875 0 517.4 SCH 14 BFI.4875 2025-07-10 00:00:00 1 2025-07-10 LB