S. Leble et A. Zaitsev, THE MODIFIED RESOLVENT FOR THE ONE-DIMENSIONAL SCHRODINGER OPERATOR WITH A REFLECTIONLESS POTENTIAL AND GREEN-FUNCTIONS IN MULTIDIMENSIONS, Journal of physics. A, mathematical and general, 28(22), 1995, pp. 585-588
The representation of the resolvent of the one-dimensional Schrodinger
operator with a reflectionless potential does not contain the integra
l term. It is obtained via Jest function simple poles decomposition wi
thin the formula for the Green function. As a corollary we have a new
expression for the reflectionless potential with a free parameter. The
results allow the Green functions for a wide class of multidimensiona
l differential equations with a coefficient proportional to the potent
ial to be obtained. Examples for diffusion and wave equations are give
n.