01051nam0-22003131i-450-9900010153804033213-540-08523-8000101538FED01000101538(Aleph)000101538FED01000101538--------d--------km-y0itay50------baeng<<The >>Deficiency Index Problem for Powers of Ordinary Differential ExpressionsRobert M. Kauffman, Thomas T. Read and Anton ZettlBerlin [etc.]Springer-Verlag1977vi, 112 p.24 cmLecture Notes in Mathematics621Equazioni differenziali e integroDifferenziali517.37Kaufman,Robert McKenzie<1941- >349749Read,Thomas T.Zettl,AntonITUNINARICAUNIMARCBK99000101538040332115-1389582 F.T.FI1FI1Deficiency Index Problem for Powers of Ordinary Differential Expressions355427UNINA