Quasi-Trefftz spaces for a first-order formulation of the Helmholtz equation
Lise-Marie Imbert-Gérard, Andréa Lagardère, Guillaume Sylvand, Sébastien Tordeux
Published: 2025/9/10
Abstract
This work is the first step in the development of quasi-Trefftz methods for first-order differential systems. It focuses on discrete quasi-Trefftz spaces, starting from their definition and including construction of corresponding bases together with their computational aspect.