Results 51 to 60 of about 505,660 (243)

FE–BE Coupling Methods for Elastoplasticity

open access: yes, 1997
Non-linear physical systems of infinite extent are conveniently modelled using FE–BE coupling methods. By the combination of both methods, suitable use of the advantages of each one may be obtained.
Adjerid   +7 more
core   +2 more sources

Trefftz-Herrera Method

open access: yesComputer Assisted Methods in Engineering and Science, 2023
The author's algebraic theory of boundary value problems has permitted systematizing Trefftz method and expanding its scope. The concept of TH-completeness has played a key role for such developments. This paper is devoted to revise the present state of
Ismael Herrera
doaj  

A decomposition-guided mechanism for nonstationary time series forecasting

open access: yesAIP Advances
Time series forecasting has been playing an important role in decision making, control, and monitoring across various fields. Specifically, the forecasting of nonstationarity time series remains a challenging problem where traditional time series ...
Hao Wang   +3 more
doaj   +1 more source

Parallel Implementation of a Two-level Algebraic ILU(k)-based Domain Decomposition Preconditioner

open access: yesTrends in Computational and Applied Mathematics, 2018
We discuss the parallel implementation of a two-level algebraic ILU(k)-based domain decomposition preconditioner using the PETSc library. We present strategies to improve performance and minimize communication among processes during setup and application
Italo Cristiano L. Nievinski   +5 more
doaj   +1 more source

Cross-Points in Domain Decomposition Methods with a Finite Element Discretization

open access: yes, 2014
Non-overlapping domain decomposition methods necessarily have to exchange Dirichlet and Neumann traces at interfaces in order to be able to converge to the underlying mono-domain solution. Well known such non-overlapping methods are the Dirichlet-Neumann
Gander, Martin J.   +1 more
core   +1 more source

Optimal control in heterogeneous domain decomposition methods [PDF]

open access: yes, 2017
Some new domain decomposition methods (DDM) based on optimal control approach are introduced for the coupling of first- and second-order equations on overlapping subdomains. Several cost functionals and control functions are proposed.
Agoshkov, V. I.   +2 more
core  

Improved Material Decomposition With a Two-Step Regularization for Spectral CT

open access: yesIEEE Access, 2019
One of the advantages of spectral computed tomography (CT) is it can achieve accurate material components using the material decomposition methods. The image-based material decomposition is a common method to obtain specific material components, and it ...
Weiwen Wu   +4 more
doaj   +1 more source

An introduction to Multitrace Formulations and Associated Domain Decomposition Solvers [PDF]

open access: yes, 2015
Multitrace formulations (MTFs) are based on a decomposition of the problem domain into subdomains, and thus domain decomposition solvers are of interest. The fully rigorous mathematical MTF can however be daunting for the non-specialist.
Claeys, X., Dolean, V., Gander, M. J.
core   +4 more sources

Schwarz Waveform Relaxation for Heat Equations with Nonlinear Dynamical Boundary Conditions

open access: yesAbstract and Applied Analysis, 2013
We are interested in solving heat equations with nonlinear dynamical boundary conditions by using domain decomposition methods. In the classical framework, one first discretizes the time direction and then solves a sequence of state steady problems by ...
Shu-Lin Wu
doaj   +1 more source

A ConvNets-based approach for capturing the heterogeneity of spatial domain in parallel geoprocessing

open access: yesInternational Journal of Digital Earth
Predicting computational intensity (CI) is essential for domain decomposition and load balance in parallel geoprocessing. However, traditional CI prediction is limited in capturing the heterogeneity of spatial domain, leading to poor accuracy and load ...
Fan Gao, Wei Lu, Linlu Gan, Chenglong Xu
doaj   +1 more source

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