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Finite Element Approximation of the Modified Maxwell's Stekloff Eigenvalues (2004.04588v1)
Published 9 Apr 2020 in math.NA and cs.NA
Abstract: The modified Maxwell's Stekloff eigenvalue problem arises recently from the inverse electromagnetic scattering theory for inhomogeneous media. This paper contains a rigorous analysis of both the eigenvalue problem and the associated source problem on Lipschitz polyhedra. A new finite element method is proposed to compute Stekloff eigenvalues. By applying the Babuska-Osborn theory, we prove an error estimate without additional regularity assumptions. Numerical results are presented for validation.