Back to the conference's main page.


Miloslav Znojil (Nuclear Physics Institute AS CR, Rez, Czech Republic)

Zeros of classical orthogonal polynomials as eigenvalues of quantum observables

Abstract:
   A new form of applicability of classical orthogonal polynomials Cn(x) is quantum theory is proposed. The key idea of the proposal is that whenever CN(xN)=0, the truncated form of the standard three-term recurrences satisfied by the set of polynomials Cn(xN) with n=0, 1, ..., N-1 may be re-read as a non-Hermitian-matrix eigenvalue problem which admits N alternative isospectral Hermitizations. The main mathematical ingredient of our proposal is revealed to lie in the feasibility of an exhaustive and constructive, closed-form enumeration and partial ordering of these Hermitizations.