activity
20222024
most citedStabilization-free HHO a posteriori error control

12 citations · 26 across the 8 of their papers we have counts for

collaborators

8 papers

math.NA2024★ 5 cited

Adaptive hybrid high-order method for guaranteed lower eigenvalue bounds

Carsten Carstensen, Benedikt Gräßle, Ngoc Tien Tran

The higher-order guaranteed lower eigenvalue bounds of the Laplacian in the recent work by Carstensen, Ern, and Puttkammer [Numer. Math. 149, 2021] require a parameter $C_{\mathrm{…

math.NA2024

Rate-optimal higher-order adaptive conforming FEM for biharmonic eigenvalue problems on polygonal domains

Carsten Carstensen, Benedikt Gräßle

The a posteriori error analysis of the classical Argyris finite element methods dates back to 1996, while the optimal convergence rates of associated adaptive finite element scheme…

math.NA2024

Pressure-improved Scott-Vogelius type elements

Nis-Erik Bohne, Benedikt Gräßle, Stefan A. Sauter

The Scott-Vogelius element is a popular finite element for the discretization of the Stokes equations which enjoys inf-sup stability and gives divergence-free velocity approximatio…

math.NA2023★ 4 cited

Unifying a posteriori error analysis of five piecewise quadratic discretisations for the biharmonic equation

Carsten Carstensen, Benedikt Gräßle, Neela Nataraj

An abstract property (H) is the key to a complete a priori error analysis in the (discrete) energy norm for several nonstandard finite element methods in the recent work [Lowest-or…

math.NA2023★ 2 cited

A posteriori error control for fourth-order semilinear problems with quadratic nonlinearity

Carsten Carstensen, Benedikt Gräßle, Neela Nataraj

A general a posteriori error analysis applies to five lowest-order finite element methods for two fourth-order semi-linear problems with trilinear non-linearity and a general sourc…

math.NA2022★ 3 cited

The pressure-wired Stokes element: a mesh-robust version of the Scott-Vogelius element

Benedikt Gräßle, Nis-Erik Bohne, Stefan A. Sauter

The Scott-Vogelius finite element pair for the numerical discretization of the stationary Stokes equation in 2D is a popular element which is based on a continuous velocity approxi…

math.NA2022★ 12 cited

Stabilization-free HHO a posteriori error control

Fleurianne Bertrand, Carsten Carstensen, Benedikt Gräßle +1

The known a posteriori error analysis of hybrid high-order methods (HHO) treats the stabilization contribution as part of the error and as part of the error estimator for an effici…

math.NA2022

Optimal multilevel adaptive FEM for the Argyris element

Benedikt Gräßle

The main drawback for the application of the conforming Argyris FEM is the labourious implementation on the one hand and the low convergence rates on the other. If no appropriate a…