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010   $a3-540-37024-2
024 7 $a10.1007/BFb0064277
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035   $a(PQKBTitleCode)TC0000322492
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035   $a(PQKB)10514801
035   $a(DE-He213)978-3-540-37024-6
035   $a(MiAaPQ)EBC5579586
035   $a(MiAaPQ)EBC6709606
035   $a(Au-PeEL)EBL5579586
035   $a(OCoLC)1066191630
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100   $a20220513d1977      uy             0
101 0 $aeng
135   $aurnn#008mamaa
181   $ctxt
182   $cc
183   $acr
200 14$aThe deficiency index problem for powers of ordinary differential expressions /$fRobert M. Kauffman, Thomas T. Read, Antol Zettl
205   $a1st ed. 1977.
210  1$aBerlin ;$aHeidelberg ;$aNew York :$cSpringer-Verlag,$d[1977]
210  4$dİ1977
215   $a1 online resource (VI, 112 p.)
225 1 $aLecture notes in mathematics (Springer-Verlag) ;$v621
300   $aBibliographic Level Mode of Issuance: Monograph
311   $a3-540-08523-8 
327   $aFunctional analytic preliminaries -- Linear differential operators and the general classification theory of deficiency indices -- Second order limit-point, limit-circle conditions -- Higher order limit-point criteria -- The deficiency index problem for polynomials in symmetric differential expressions -- Applications of perturbation theory -- Conditions on the coefficients for all powers to be limit-point.
410  0$aLecture notes in mathematics (Springer-Verlag) ;$v621.
606   $aBoundary value problems$xWeyl theory
615  0$aBoundary value problems$xWeyl theory.
676   $a515.35
686   $a34B20$2msc
700   $aKauffman$b R. M$g(Robert McKenzie),$f1941-$01224575
702   $aRead$b Thomas T.$f1943-
702   $aZettl$b Anton
801  0$bMiAaPQ
801  1$bMiAaPQ
801  2$bMiAaPQ
906   $aBOOK
912   $a996466487203316
996   $aThe deficiency index problem for powers of ordinary differential expressions$92843006
997   $aUNISA