2 papers
math.NA2026
Infinite-lattice discrete Calderón projection via the lattice Green's function for active noise shielding and confinement
Qing Xia
We construct an infinite-lattice discrete Calderón projection for the Helmholtz equation by convolution with the lattice Green's function (LGF), and apply it to active noise shiel…
math.NA2026
Stabilization and Operator Preconditioning of Bulk--Surface CutFEM via Harmonic Extension
Qing Xia
We present a cut finite element method (CutFEM) for the Laplace--Beltrami equation on a smooth closed curve coupled to a harmonic bulk problem in that…