Krylov-Schrodinger

Mapping from the Krylov-SchrOdinger to the Lanczos States 195... 

This finding, which was mentioned in Section 4, exhibits a remarkably regular factorability of the general result for H (c0) as a direct consequence of a judicious combination of symmetry of the Hankel determinant (46) and the Lanczos orthogonal polynomials. Thus, given either the set /3 or qVi0, the Hankel determinant H (c0) or equivalently the overlap determinant detS in the Schrodinger or Krylov basis rj can be constructed at once from Eq. (175). This is very useful in practical computations. 

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