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20142026
most citedAdaptive FEM with coarse initial mesh guarantees optimal convergence rates for compactly perturbed elliptic problems

50 citations · 71 across the 21 of their papers we have counts for

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11 papers · 1 filter

math.NA2026

BDF2-type integrator for Landau-Lifshitz-Gilbert equation in micromagnetics: IMEX time-stepping and full effective field

Michele Aldé, Dirk Praetorius, Agus L. Soenjaya

We extend the BDF2-type finite-element integrator proposed in [M. Aldé, M. Feischl, D. Praetorius; BDF2-type integrator for Landau-Lifshitz-Gilbert equation in micromagnetics: unco…

math.NA2026

Optimal convergence of adaptive BEM driven by functional-type error estimators

Maximilian Brunner, Alexander Freiszlinger, Dirk Pauly +1

In the present work, we derive functional upper bounds for the potential error arising from boundary element discretizations of the Laplace-Dirichlet problem. These bounds are base…

math.NA2026

Optimal complexity of adaptive FEM for second-order linear elliptic PDEs driven by non-residual estimators, Part I: Symmetric PDEs

Philipp Bringmann, Aleksandar Dadic, Dario Ferloni +3

We consider adaptive finite element methods for symmetric second-order linear elliptic PDEs, where the adaptive algorithm steers the local mesh refinement as well as an iterative a…

math.NA2026

Quasi-optimal complexity of iterative Galerkin methods driven by an elliptic reconstruction error estimator

Maximilian Brunner, Gregor Gantner, Christoph Lietz +1

We study an iterative Galerkin method for quasilinear elliptic problems in the Browder-Minty setting. The resulting discrete nonlinear systems are solved by linearization via a (da…

math.NA2026

BDF2-type integrator for Landau-Lifshitz-Gilbert equation in micromagnetics: a-priori error estimates

Michele Aldé, Dirk Praetorius, Michael Feischl

We consider the Landau-Lifshitz-Gilbert equation (LLG), which models time-dependent micromagnetic phenomena. We analyze a fully discrete scheme that combines first-order finite ele…

math.NA2026

Adaptive finite element methods with optimally preconditioned GMRES guarantee optimal complexity

Thomas Führer, Paula Hilbert, Ani Miraçi +1

We analyze optimal complexity of adaptive finite element methods (AFEMs) for general second-order linear elliptic partial differential equations (PDEs) in the Lax-Milgram setting.…

math.NA2026

Minimum residual discretization of a semilinear elliptic problem

Carlos García Vera, Norbert Heuer, Dirk Praetorius

We propose a least-squares penalization as a means to extend the discontinuous Petrov-Galerkin (DPG) method with optimal test functions to a class of semilinear elliptic problems.…

math.NA2026

New a posteriori error estimates for full-space transmission problems

Alexander Freiszlinger, Dirk Pauly, Dirk Praetorius +1

In the present work, we derive functional upper bounds for the potential error arising from finite-element boundary-element coupling formulations for a nonlinear Poisson-type trans…

math.NA2026

Multigoal-oriented adaptive finite element method with convergence rates

Roland Becker, Maximilian Brunner, Paula Hilbert +2

We formulate and analyze a goal-oriented adaptive finite element method for a symmetric linear elliptic partial differential equation (PDE) that can simultaneously deal with multip…

math.NA2026

Unconditional full linear convergence and quasi-optimal complexity of smoothed adaptive finite element methods

Philipp Bringmann, Christoph Lietz, Dirk Praetorius

We present the first rigorous convergence analysis of the smoothed adaptive finite element method (S-AFEM) proposed in [Mulita, Giani, Heltai: SIAM J. Sci. Comput. 43, 2021]. S-AFE…

math.NA2026

Generalized preconditioned conjugate gradients for adaptive FEM with optimal complexity

Paula Hilbert, Ani Miraçi, Dirk Praetorius

We consider adaptive finite element methods (AFEMs) with inexact algebraic solvers for second-order symmetric linear elliptic diffusion problems. Optimal complexity of AFEM, i.e.,…