Additive Schwarz methods for semilinear elliptic problems with convex energy functionals: Convergence rate independent of nonlinearity

J Park - SIAM Journal on Scientific Computing, 2024 - SIAM
We investigate additive Schwarz methods for semilinear elliptic problems with convex
energy functionals, which have wide scientific applications. A key observation is that the …

A coupled FETI-BDNM for solving 3D elastic frictional contact problem

H Gao, Z Hu, Z Yin, G Lin - European Journal of Mechanics-A/Solids, 2023 - Elsevier
Based on the B-differentiable Newton method (BDNM) and finite element tearing and
interconnecting (FETI) algorithm, a coupled approach named FETI-BDNM is developed to …

Additive Schwarz methods for fourth-order variational inequalities

J Park - Journal of Scientific Computing, 2024 - Springer
Fourth-order variational inequalities are encountered in various scientific and engineering
disciplines, including elliptic optimal control problems and plate obstacle problems. In this …

Additive Schwarz methods for convex optimization with backtracking

J Park - Computers & Mathematics with Applications, 2022 - Elsevier
This paper presents a novel backtracking strategy for additive Schwarz methods for general
convex optimization problems as an acceleration scheme. The proposed backtracking …

A coupled SBFETI-BDEs method for solving 2D static and dynamic contact problem with friction

H Gao, Z Hu, Z Yin, G Lin - Engineering Analysis with Boundary Elements, 2023 - Elsevier
In this study, we propose a coupled approach called the SBFETI-BDEs method for solving
the 2D elastic frictional contact problem. The contact system is decomposed into multiple …

Hybrid TBETI domain decomposition for huge 2D scalar variational inequalities

Z Dostál, M Sadowská, D Horák… - International Journal for …, 2024 - Wiley Online Library
Abstract The unpreconditioned H‐TFETI‐DP (hybrid total finite element tearing and
interconnecting dual‐primal) domain decomposition method introduced by Klawonn and …

DualFL: A Duality-based Federated Learning Algorithm with Communication Acceleration in the General Convex Regime

J Park, J Xu - arXiv preprint arXiv:2305.10294, 2023 - arxiv.org
We propose a new training algorithm, named DualFL (Dualized Federated Learning), for
solving distributed optimization problems in federated learning. DualFL achieves …

TFETI for Scalar Problems

Z Dostál, T Kozubek - Scalable Algorithms for Contact Problems, 2023 - Springer
The basic ideas of TFETI-based scalable domain decomposition algorithms for contact
problems are illustrated on the solution of two scalar problems with unilateral constraints …