Abstract
We develop an efficient spectral-element method for computing the transmission eigenvalues in two-dimensional radially stratified media. Our method is based on a dimension reduction approach which reduces the problem to a sequence of one-dimensional eigenvalue problems that can be efficiently solved by a spectral-element method. We provide an error analysis which shows that the convergence rate of the eigenvalues is twice that of the eigenfunctions in energy norm. We present ample numerical results to show that the method convergences exponentially fast for piecewise stratified media, and is very effective, particularly for computing the few smallest eigenvalues.
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The work of J. Shen partially supported by AFOSR grant FA9550-11-1-0328 and NFS grant DMS-1217066.
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An, J., Shen, J. A Spectral-Element Method for Transmission Eigenvalue Problems. J Sci Comput 57, 670–688 (2013). https://doi.org/10.1007/s10915-013-9720-1
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DOI: https://doi.org/10.1007/s10915-013-9720-1