φ-FEM: an efficient simulation tool using simple meshes for problems in structure mechanics and heat transfer. - Stephane Cotin; Michel Duprez; Vanessa Lleras; Alexei Lozinski; Killian Vuillemot (CoRR, 2021)

phi-FEM for the heat equation: optimal convergence on unfitted meshes in space. - Michel Duprez; Vanessa Lleras; Alexei Lozinski; Killian Vuillemot (CoRR, 2023)

Phi-FEM-FNO: a new approach to train a Neural Operator as a fast PDE solver for variable geometries. - Michel Duprez; Vanessa Lleras; Alexei Lozinski; Vincent Vigon; Killian Vuillemot (CoRR, 2025)

φ -FD: A Well-conditioned Finite Difference Method Inspired by φ -FEM for General Geometries on Elliptic PDEs. - Michel Duprez; Vanessa Lleras; Alexei Lozinski; Vincent Vigon; Killian Vuillemot (J. Sci. Comput., 2025)

φ-FEM-FNO: A new approach to train a Neural Operator as a fast PDE solver for variable geometries. - Michel Duprez; Vanessa Lleras; Alexei Lozinski; Vincent Vigon; Killian Vuillemot (Commun. Nonlinear Sci. Numer. Simul., 2026)