Volodymyr L. Makarov, Nataliya Rossokhata, Denys Dragunov. Exponentially Convergent Functional-discrete Method for Eigenvalue Transmission Problems with a Discontinuous Flux and the Potential as a Function in the Space L_1. Comput. Meth. in Appl. Math., 12(1):46-72, 2012. [doi]
Abstract is missing.