2 papers
physics.comp-ph2025
The uniqueness of inverse scattering problems, reciprocity principles, and nonradiating sources related to low-signature structures
Johan Helsing, Anders Karlsson
This paper is about perfectly electrically conducting structures designed to produce negligible scattered power when exposed to a time-harmonic plane electromagnetic wave. The stru…
math.NA2024
The Helmholtz Dirichlet and Neumann problems on piecewise smooth open curves
Johan Helsing, Shidong Jiang
A numerical scheme is presented for solving the Helmholtz equation with Dirichlet or Neumann boundary conditions on piecewise smooth open curves, where the curves may have corners…