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Numerical computation of the eigenvalues of a discontinuous Dirac system using the sinc method with error analysis. (English) Zbl 1255.65144
Summary: We apply a regularized sinc method to compute the eigenvalues of a discontinuous regular Dirac system with transmission conditions at the point of discontinuity. The regularized technique allows us to insert some parameters to the well-known sinc method, strengthening the existing technique, and to avoid the aliasing error. The error analysis is established considering both the truncation and amplitude errors associated with the sampling theorem. Numerical examples together with tables and illustrative figures are given.
MSC:
65L15Eigenvalue problems for ODE (numerical methods)
34L16Numerical approximation of eigenvalues and of other parts of the spectrum
94A20Sampling theory