3 papers
math.NA2025
Multigrid methods for the ghost finite element approximation of elliptic problems
Hridya Dilip, Armando Coco
We present multigrid methods for solving elliptic partial differential equations on arbitrary domains using the nodal ghost finite element method, an unfitted boundary approach whe…
math.NA2019
A multigrid ghost-point level-set method for incompressible Navier-Stokes equations on moving domains with curved boundaries
Armando Coco
In this paper we present a numerical approach to solve the Navier-Stokes equations on moving domains with second-order accuracy. The space discretization is based on the ghost-poin…
math.NA2019
A level-set multigrid technique for nonlinear diffusion in the numerical simulation of marble degradation under chemical pollutants
Armando Coco, Matteo Semplice, Stefano Serra-Capizzano
Having in mind the modelling of marble degradation under chemical pollutants, e.g.~the sulfation process, we consider governing nonlinear diffusion equations and their numerical ap…