2 papers
math.NA2026
Edge element DtN method for electromagnetic scattering poles of perfectly conducting obstacles
Bo Gong, Takumi Sato, Jiguang Sun +1
Meromorphic continuation of the scattering operator leads to scattering poles (resonances) in the complex plane. Despite their significance, numerical investigation of scattering p…
math.NA2025
Generalized Rellich's lemmas, uniqueness theorem and inside-out duality for scattering poles
Xiaodong Liu, Jiguang Sun, Lei Zhang
Scattering poles correspond to non-trivial scattered fields in the absence of incident waves and play a crucial role in the study of wave phenomena. These poles are complex wavenum…