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About this paper
Hao Kang, Liang Li, Xing Li
dR-Eig-PIELM coordinates compatible polynomial spaces, enforces perfect-electric-conductor (PEC) boundary conditions, and removes represented gradients before solving a reduced multimode Maxwell eigenproblem. In a tested asymmetric-material cavity, its first ten eigenvalues differ from a second-order Nédélec finite-element reference by at most 6.713×10⁻⁷ relatively, while the boundary-only baseline returns four modes classified as spurious; results are limited to the tested cases.
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