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Published in: Journal of Scientific Computing 1/2015

01-04-2015

On the Spectrum Computation of Non-oscillatory and Highly Oscillatory Kernel with Weak Singularity

Authors: Can Huang, Zhimin Zhang

Published in: Journal of Scientific Computing | Issue 1/2015

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Abstract

We compute the spectra of integral compact operators with weak singularity. Jacobi-spectral collocation methods are applied for problems without high oscillation. A convergence rate is obtained for general non-oscillatory operators. Furthermore, if the bilinear form associated with the kernel is positive definite, the convergence rate is doubled. A spectral Galerkin method with modified Fourier expansion is developed to compute the spectra of highly oscillatory kernel. Numerical results are presented to demonstrate the effectiveness and accuracy of our algorithms and theorems.

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Metadata
Title
On the Spectrum Computation of Non-oscillatory and Highly Oscillatory Kernel with Weak Singularity
Authors
Can Huang
Zhimin Zhang
Publication date
01-04-2015
Publisher
Springer US
Published in
Journal of Scientific Computing / Issue 1/2015
Print ISSN: 0885-7474
Electronic ISSN: 1573-7691
DOI
https://doi.org/10.1007/s10915-014-9884-3

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