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cs.CE2026
Quasi-Helmholtz Calderón Multiplicative Preconditioning for Higher-Order Global Multi-Trace Integral Equations
Cedric Münger, Alessandro Zuccotti, Van Chien Le +1
The paper presents a higher-order global multi-trace integral equation for time-harmonic electromagnetic scattering by composite objects. The higher-order multi-trace formulation i…
cs.CE2026
Broadband Stable Calderón-Preconditioned Vector-Potential-Only Integral Equations for PEC Scattering
Paul Olyslager, Hendrik Rogier, Kristof Cools
We propose a stabilized first-kind, Calderón preconditioned, vector-potential-only integral equation, for scattering at perfect electrical conductors. The method yields accurate lo…