Eigenfunction expansions in the imaginary Lobachevsky space
  Eigenfunctions of the Schrodinger equation with the Coulomb potential in the imaginary Lobachevsky space are studied in two coordinate systems admitting solutions in terms of hypergeometric functions. Normalization and coefficients of mutual expansions for some sets of solutions are found. 
Yu.A. Kurochkin, V.S. Otchik, D.R. Petrosyan, G.S. Pogosyan
math-ph math.MP quant-ph