A posteriori single-and multi-goal error control and adaptivity for partial differential equations

B Endtmayer, U Langer, T Richter, A Schafelner… - arXiv preprint arXiv …, 2024 - arxiv.org
This work reviews goal-oriented a posteriori error control, adaptivity and solver control for
finite element approximations to boundary and initial-boundary value problems for stationary …

On the convergence of adaptive stochastic collocation for elliptic partial differential equations with affine diffusion

M Eigel, OG Ernst, B Sprungk, L Tamellini - SIAM Journal on Numerical …, 2022 - SIAM
Convergence of an adaptive collocation method for the parametric stationary diffusion
equation with finite-dimensional affine coefficient is shown. The adaptive algorithm relies on …

Convergence of adaptive stochastic Galerkin FEM

A Bespalov, D Praetorius, L Rocchi, M Ruggeri - SIAM Journal on Numerical …, 2019 - SIAM
We propose and analyze novel adaptive algorithms for the numerical solution of elliptic
partial differential equations with parametric uncertainty. Four different marking strategies …

A fully adaptive multilevel stochastic collocation strategy for solving elliptic PDEs with random data

J Lang, R Scheichl, D Silvester - Journal of Computational Physics, 2020 - Elsevier
We propose and analyse a fully adaptive strategy for solving elliptic PDEs with random data
in this work. A hierarchical sequence of adaptive mesh refinements for the spatial …

T-IFISS: a toolbox for adaptive FEM computation

A Bespalov, L Rocchi, D Silvester - Computers & Mathematics with …, 2021 - Elsevier
T-IFISS is a finite element software package for studying finite element solution algorithms
for deterministic and parametric elliptic partial differential equations. The emphasis is on self …

Hierarchical a posteriori error estimation of Bank–Weiser type in the FEniCS Project

R Bulle, JS Hale, A Lozinski, SPA Bordas… - … & Mathematics with …, 2023 - Elsevier
In the seminal paper of Bank and Weiser (1985)[17] a new a posteriori estimator was
introduced. This estimator requires the solution of a local Neumann problem on every cell of …

Two-level a posteriori error estimation for adaptive multilevel stochastic Galerkin finite element method

A Bespalov, D Praetorius, M Ruggeri - SIAM/ASA Journal on Uncertainty …, 2021 - SIAM
The paper considers a class of parametric elliptic partial differential equations (PDEs),
where the coefficients and the right-hand side function depend on infinitely many (uncertain) …

Goal-oriented error estimation and h-adaptive finite elements for hyperelastic micromorphic continua

X Ju, R Mahnken, Y Xu, L Liang - Computational Mechanics, 2022 - Springer
We develop a goal-oriented finite element method for a class of micromorphic hyperelasticity
problems, where size effects are taken into account by an enriched kinematics. Upon …

Adaptive quasi-Monte Carlo finite element methods for parametric elliptic PDEs

M Longo - Journal of Scientific Computing, 2022 - Springer
We introduce novel adaptive methods to approximate moments of solutions of partial
differential Equations (PDEs) with uncertain parametric inputs. A typical problem in …

Multiscale analysis of composite structures with goal-oriented mesh adaptivity and reduced order homogenization

X Ju, R Mahnken, Y Xu, L Liang, C Cheng, W Zhou - Composite Structures, 2022 - Elsevier
We present a multiscale finite element approach for composite structure analysis, applying
reduced order homogenization to obtain an accurate surrogate model for microscale RVE …