Inverse transmission eigenvalue problems with the twin-dense nodal subset

Author(s):  
Yu Ping Wang ◽  
Chung Tsun Shieh ◽  
Hong Yi Miao

Abstract The inverse nodal problem for the Sturm-Liouville operator

2018 ◽  
Vol 41 (17) ◽  
pp. 7576-7582 ◽  
Author(s):  
Sertac Goktas ◽  
Hikmet Koyunbakan ◽  
Tuba Gulsen

2018 ◽  
Vol 22 (Suppl. 1) ◽  
pp. 123-136 ◽  
Author(s):  
Tuba Gulsen ◽  
Emrah Yilmaz ◽  
Shahrbanoo Akbarpoor

In this study, we deal with the inverse nodal problem for Sturm-Liouville equation with eigenparameter-dependent and jump conditions. Firstly, we obtain reconstruction formulas for potential function, q, under a condition and boundary data, ?, as a limit by using nodal points to apply the Chebyshev interpolation method. Then, we prove the stability of this problem. Finally, we calculate approximate solutions of the inverse nodal problem by considering the Chebyshev interpolation method. We then present some numerical examples using Matlab software program to compare the results obtained by the classical approach and by Chebyshev polynomials for the solutions of the problem.


2010 ◽  
Vol 15 (3) ◽  
pp. 383-392 ◽  
Author(s):  
Chuan-Fu Yang

Inverse nodal problem consists in constructing operators from the given nodes (zeros) of their eigenfunctions. In this work, the Sturm‐Liouville problem with one classical boundary condition and another nonlocal integral boundary condition is considered. We prove that a dense subset of nodal points uniquely determine the boundary condition parameter and the potential function of the Sturm‐Liouville equation. We also provide a constructive procedure for the solution of the inverse nodal problem.


2000 ◽  
Vol 130 (6) ◽  
pp. 1237-1257 ◽  
Author(s):  
Bernhard Bodenstorfer ◽  
Aad Dijksma ◽  
Heinz Langer

In this paper we consider the Sturm–Liouville operator d2/dx2 − 1/x on the interval [a, b], a < 0 < b, with Dirichlet boundary conditions at a and b, for which x = 0 is a singular point. In the two components L2(a, 0) and L2(0, b) of the space L2(a, b) = L2(a, 0) ⊕ L2(0, b) we define minimal symmetric operators and describe all the maximal dissipative and self-adjoint extensions of their orthogonal sum in L2(a, b) by interface conditions at x = 0. We prove that the maximal dissipative extensions whose domain contains only continuous functions f are characterized by the interface condition limx→0+(f′(x)−f′(−x)) = γf(0) with γ∈C+∪R or by the Dirichlet condition f(0+) = f(0−) = 0. We also show that the corresponding operators can be obtained by norm resolvent approximation from operators where the potential 1/x is replaced by a continuous function, and that their eigen and associated functions can be chosen to form a Bari basis in L2(a, b).


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