An Overlapping Domain Decomposition Method Based on Calderón Preconditioned CFIE

In this letter, an overlapping domain decomposition method (ODDM) based on the Calderón preconditioned combined field integral equation (CP-CFIE) is proposed. In contrast to previous ODDM using the combined field integral equation (CFIE), the proposed method possesses excellent robustness in the case of multiscale discretization. Several numerical examples are provided to demonstrate the correctness and performance of the proposed method.