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20142026
most citedA Survey of Trefftz Methods for the Helmholtz Equation

99 citations · 527 across the 36 of their papers we have counts for

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Showing 2023Show all

6 papers · 1 filter

math.NA2023★ 4 cited

A space-time continuous and coercive formulation for the wave equation

Paolo Bignardi, Andrea Moiola

We propose a new space-time variational formulation for wave equation initial-boundary value problems. The key property is that the formulation is coercive (sign-definite) and cont…

math.NA2023★ 1 cited

Integral equation methods for acoustic scattering by fractals

A. M. Caetano, S. N. Chandler-Wilde, X. Claeys +3

We study sound-soft time-harmonic acoustic scattering by general scatterers, including fractal scatterers, in 2D and 3D space. For an arbitrary compact scatterer we reformulate…

math.NA2023★ 3 cited

On polynomial Trefftz spaces for the linear time-dependent Schrödinger equation

Sergio Gómez, Andrea Moiola, Ilaria Perugia +1

We study the approximation properties of complex-valued polynomial Trefftz spaces for the -dimensional linear time-dependent Schrödinger equation. More precisely, we prove t…

math.NA2023★ 2 cited

A space-time DG method for the Schrödinger equation with variable potential

Sergio Gómez, Andrea Moiola

We present a space-time ultra-weak discontinuous Galerkin discretization of the linear Schrödinger equation with variable potential. The proposed method is well-posed and quasi-opt…

math.NA2023★ 12 cited

An unconditionally stable space-time isogeometric method for the acoustic wave equation

Sara Fraschini, Gabriele Loli, Andrea Moiola +1

We study space--time isogeometric discretizations of the linear acoustic wave equation that use splines of arbitrary degree p, both in space and time. We propose a space--time vari…

math.AP2023★ 4 cited

Explicit bounds for the high-frequency time-harmonic Maxwell equations in heterogeneous media

Théophile Chaumont-Frelet, Andrea Moiola, Euan A. Spence

We consider the time-harmonic Maxwell equations posed in . We prove a priori bounds on the solution for coefficients and satisfying certain monoton…