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https://doi.org/10.1023/b:cjop.0000014368.29916.99
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Cite Journal: Czechoslovak Journal of Physics |  Publication Date: Jan 1, 2004 |
 Citations: 4 |
We show how 1-dimensional, non-Hermitian, Sturm-Liouville systems, with rational fraction potentials, define a Moment Problem positivity representation, enabling the generation of (numerical and algebraic) converging lower and upper bounds to the (real and imaginary parts of) complex eigenenergies.
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