1 citations · 1 across the 2 of their papers we have counts for
3 papers
math.NA2023
Divergence-free cut finite element methods for Stokes flow
Thomas Frachon, Erik Nilsson, Sara Zahedi
We develop two unfitted finite element methods for the Stokes equations using -conforming finite elements. Both methods achieve optimal convergence for velocity, en…
math.NA2022★ 1 cited
A divergence preserving cut finite element method for Darcy flow
Thomas Frachon, Peter Hansbo, Erik Nilsson +1
We study cut finite element discretizations of a Darcy interface problem based on the mixed finite element pairs , . Here is the space of di…
math.SP2021
The isospectral problem for flat tori from three perspectives
Erik Nilsson, Julie Rowlett, Felix Rydell
Flat tori are among the only types of Riemannian manifolds for which the Laplace eigenvalues can be explicitly computed. In 1964, Milnor used a construction of Witt to find an exam…