00841nam0 2200265 450 00001969620081119160909.020081119d1997----km-y0itay50------baengUSy-------001yyLinear differential operatorsCornelius LanczosMineolaDover Pubblications1997XVI, 564 p.22 cmDover books on mathematics2001Dover books on mathematicsLinear differential operators33835Operatori differenziali515.720Analisi funzionaleLanczos,Cornelius27778ITUNIPARTHENOPE20081119RICAUNIMARC000019696M 515.724 2/4M 1414DSA2008Linear differential operators33835UNIPARTHENOPE