Abstract
We investigate the spectral singularities and the eigenvalues of the boundary value problem
where Q and K are complex valued functions, K∈L 2(R +), α,β∈C with |α|+|β|≠0 and λ is a spectral parameter.
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Bairamov, E., Karaman, Ö. Spectral singularities of Klein-Gordon s-wave equations with an integral boundary condition. Acta Mathematica Hungarica 97, 121–131 (2002). https://doi.org/10.1023/A:1020815113773
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DOI: https://doi.org/10.1023/A:1020815113773