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math.NA2020
Resonance Frequencies of a Slab with Subwavelength Slits: a Fourier-transformation Approach
Jiaxin Zhou, Wangtao Lu
This paper proposes a novel, rigorous and simple Fourier-transformation approach to study resonances in a perfectly conducting slab with finite number of subwavelength slits of wid…
math.NA2020
Mathematical analysis of wave radiation by a step-like surface
Wangtao Lu
This paper proposes, for wave propagating in a globally perturbed half plane with a perfectly conducting step-like surface, a sharp Sommerfeld radiation condition (SRC) for the fir…