01294nam a2200349 i 450099100080747970753620020507173835.0970312s1977 de ||| | eng 3540085238b10759979-39ule_instLE01302627ExLDip.to Matematicaeng515.352AMS 34B20Kauffman, Robert M.438332The deficiency index problem for powers of ordinary differential expressions /Robert Kauffman, Thomas T. Read, Anton ZettlBerlin :Springer-Verlag,1977vi, 112 p. ;25 cm.Lecture notes in mathematics,0075-8434 ;621Bibliography: p. [98]-110.Includes indexBoundary value problemsDifferential operatorsWeyl theoryRead, Thomas ThorntonZettl, Anton.b1075997923-02-1728-06-02991000807479707536LE013 34B KAU11 (1977)12013000079004le013-E0.00-l- 00000.i1085509928-06-02Deficiency index problem for powers of ordinary differential expressions262838UNISALENTOle01301-01-97ma -engde 41