01747nam 2200445 450 00001322720050718115500.03-540-08523-820030513d1977----km-y0itay0103----baengDE<<The>> deficiency index problem for powers of ordinary differential expressionsRobert M. Kauffman, Thomas T. Read, Anton ZettlBerlin [etc.]Springer1977VI, 112 p.25 cm.Lecture notes in mathematics6212001Lecture notes in mathematicsEquazioni differenzialiOperatori differenziali515.35(21. ed.)Equazioni differenziali34B20Ordinary differential equations. Boundary value problems. Weyl theory and its generalizations47E05Operator theory. Ordinary differential operatorsKauffman,Robert M.438332Read,Thomas T.48156Zettl,Anton48157ITUniversità della Basilicata - B.I.A.RICAunimarc000013227Deficiency index problem for powers of ordinary differential expressions80798UNIBASMONSCISCIENZEEXT0030120030513BAS011054EXT0030120030513BAS011055EXT0030120030513BAS01105620050601BAS011755batch0120050718BAS01105120050718BAS01111020050718BAS01114120050718BAS011155BAS01BAS01BOOKBASA2Polo Tecnico-ScientificoGENCollezione generaleMAT31824S318242003051351Riservati