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Universität Augsburg
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Universität Augsburg
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Dr. Joscha Gedicke
Universität Wien
spricht am
Mittwoch, 7. Juni 2017
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15:45 Uhr
im
Raum 2006 (L1)
über das Thema:
| Abstract: |
| We extend the Hodge decomposition approach for the cavity problem of two-dimensional time harmonic Maxwell's equations to include the impedance boundary condition, with anisotropic electric permittivity and sign changing magnetic permeability. We derive error estimates for a P_1 finite element method based on the Hodge decomposition approach and develop a residual type a posteriori error estimator. We show that adaptive mesh refinement leads empirically to smaller errors than uniform mesh refinement for numerical experiments that involve metamaterials and electromagnetic cloaking. The well-posedness of the cavity problem when both electric permittivity and magnetic permeability can change sign is also discussed and verified for the numerical approximation of a flat lens experiment. |
| Hierzu ergeht herzliche Einladung. |
| Prof. Dr. D. Peterseim |