00520nam a2200205 a 450000500170000002000180001708200180003510000300005324500470008325000130013026000450014330000280018850000190021660000080023563000200024363000190026363000200028285600060030285600060030820251203114825.0  a9781470438340  a515.7222bMAR  aMarchenko, Vladimir A.d_  aStrum liouville operators and applications  arev. ed.  aHyderabadbUniversities Press, AMSc2011  axii, 393 p.c24 cm.bPB  aIncludes index  bc_  aSpectral theory  aTransformation  aOperator theory  f_  a_