Euclidean time formulation of the eigenvalue moment method: a moment problem-convexity analysis of Barnsley's theorem
Carlos R. Handy, G L Ndow · Journal of Physics A Mathematical and General · 1992
Over the last few years, the eigenvalue moment method (EMM) has been shown to be very effective in generating converging lower and upper bounds to the discrete low-lying spectrum of singular multidimensional Hamiltonians. In this work the authors adapt the EMM approach to the Euclidean time-dependent Schrodinger equation. The result is a new EMM theory which significantly overlaps with other eigenenergy bounding theories and which leads to a more rigorous algorithmic formulation than previously available.