Analyticity and uniform stability in the inverse spectral problem for   Dirac operators
  We prove that the inverse spectral mapping reconstructing the square integrable potentials on [0,1] of Dirac operators in the AKNS form from their spectral data (two spectra or one spectrum and the corresponding norming constants) is analytic and uniformly stable in a certain sense. 
Rostyslav O. Hryniv
math.SP math-ph math.FA math.MP