000 00570nmm a2200181Ia 4500
008 230424s9999||||xx |||||||||||||||||und||
020 _a9783540370246
100 _aRobert M. Kauffman
245 4 _aThe Deficiency Index Problem for Powers of Ordinary Differential Expressions
250 _a1977
260 _c1977
_bSpringer Berlin
_aHeidelberg
300 _aMonograph
490 _aLecture Notes in Mathematics
_vv.621
650 _aMathematics and Statistics
700 _a Anton Zettl
700 _a Thomas T. Read
856 _uhttps://doi.org/10.1007/BFb0064277
999 _c30134
_d30134