Lipschitz Stability of Inverse Nodal Problem for Energy-Dependent Sturm-Liouville Equation
Journal: NEW TRENDS IN MATHEMATICAL SCIENCES (Vol.3, No. 1)Publication Date: 2015-03-01
Authors : Emrah Yılmaz;
Page : 46-61
Keywords : Inverse Nodal Problem Diffusion Equation Lipschitz Stability;
Abstract
Inverse nodal problem on di¤usion operator is the problem of …nding the potential functions and parameters in boundary conditions by using nodal data. Especially, we solve the reconstruction and stability problems using nodal set of eigenfunctions. Moreover, we show that the space of all potential functions ? is homeomorphic to the partition set of all asymptotically equivalent nodal sequences induced by an equivalence relation. To show this stability which is known Lipschitz stability, we have to construct two metric spaces and a map ©??? between these spaces. We …nd that ©??? is a homeomorphism when the corresponding metrics are magni…ed by the derivatives of ?. Basically, this method is similar to [1] and [2] which is given for Sturm-Liouville and Hill operators, respectively and depends on the explicit asymptotic expansions of nodal points and nodal lengths.
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