Variational Principles for Bound States of Schrodinger and Dirac Equations Allowing the Use of Discontinuous Trial Functions

摘要

We present systematic constructions of variational principles for energies of bound states of the Schrodinger and Dirac equations. The principles allow the use of discontinuous trial functions. The method employed is based on a generalized Lagrange procedure. Relationships between our variational principles and those available in the literature are established.