Quasilinearization and the Estimation
of Differential Operators from Eigenvalues
Given a linear ordinary differential operator
containing several unknown constants and a number 
of its eigenvalues, the values of the unknown constants
are estimated.  A precise formulation is provided, 
and an effective numerical procedure for solution is indicated.
  The results of some computational experiments 
are given.
CACM April, 1968
Bellman, R. E.
Kagiwada, H. H.
Kalaba, R. E.
Vasudenvan, R.
