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paper

Unique solvability of a coupling problem for entire functions

arXiv:1608.07867 · doi:10.1007/s00365-017-9394-2

Abstract

We establish the unique solvability of a coupling problem for entire functions which arises in inverse spectral theory for singular second order ordinary differential equations/two-dimensional first order systems and is also of relevance for the integration of certain nonlinear wave equations.

19 pages