The sharp conditions of the uniqueness for inverse nodal problems |
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Authors: | Yongxia Guo Guangsheng Wei |
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Institution: | College of Mathematics and Information Science, Shaanxi Normal University, Xi''an 710062, PR China |
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Abstract: | In this paper we provide the sharp conditions of the uniqueness for inverse nodal Sturm–Liouville problems defined on interval with separated boundary conditions. We prove that the potential and boundary parameters can be uniquely determined by a dense nodal subset contained on with through two cases of and , where in the latter case the nodal subset also need to be paired. Note that, the dense nodal subset was required to be twin for both cases in the previous works. |
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Keywords: | primary 34L05 34A55 secondary 34L40 Sturm–Liouville problem Inverse nodal problem Potential |
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