Results 81 to 90 of about 9,971 (304)
On the Sensitivity of Some Spectral Preconditioners [PDF]
SIAM Journal on Matrix Analysis and Applications, 2006 It is well known that the convergence of the conjugate gradient method for solving symmetric positive definite linear systems depends to a large extent on the eigenvalue distribution. In many cases, it is observed that "removing" the extreme eigenvalues can greatly improve the convergence.
Giraud, L., Gratton, S.
openaire +2 more sources
Advanced Materials Technologies, EarlyView.A magnetically reconfigurable airflow sensor integrated with an airway stent enables tunable sensitivity and dynamic sensing range. Airflow‐induced cantilever deformation generates resistance changes, while an external magnetic field modulates sensor stiffness, enhancing sensitivity at low airflow velocities and extending the sensing range at higher ...
Darren Wang +10 more
wiley +1 more source
Two Preconditioners for Time-Harmonic Eddy-Current Optimal Control Problems
MathematicsIn this paper, we consider the numerical solution of a large complex linear system with a saddle-point form obtained by the discretization of the time-harmonic eddy-current optimal control problem.
Xin-Hui Shao, Jian-Rong Dong
doaj +1 more source
Advanced Optical Materials, EarlyView.MAPbBr3 microwire photodetectors reveal a strong architecture dependence of mixed ionic–electronic phototransport. A single‐gap device exhibits pronounced illumination‐history‐dependent transients governed by trap‐assisted injection and ionic polarization, whereas a multi‐gap configuration averages local interfacial effects and yields stable ...
Sebastiano De Stefano +16 more
wiley +1 more source
Computing the preconditioner for the Schur complement [PDF]
, 2005 The Newton scheme is used to construct an approximate inverse preconditioner for the Schur complement. However, this scheme is very expensive because of the computation cost of the matrix-matrix product.
Nodera, T., Moriya, K.
core +1 more source
The Monomial Preconditioned SSOR Method for Linear Complementarity Problem
IEEE Access, 2019 This paper aims to show that the existing preconditioned symmetric successive over-relaxation (SSOR) approach to solving the linear complementarity problem (LCP) is not valid.
Xinna Mao +3 more
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Progressive Iterative Approximation with Preconditioners
Mathematics, 2020 The progressive iterative approximation (PIA) plays an important role in curve and surface fitting. By using the diagonally compensated reduction of the collocation matrix, we propose the preconditioned progressive iterative approximation (PPIA) to ...
Chengzhi Liu, Zhongyun Liu
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Scalable Task Planning via Large Language Models and Structured World Representations
Advanced Robotics Research, EarlyView.This work efficiently combines graph‐based world representations with the commonsense knowledge in Large Language Models to enhance planning techniques for the large‐scale environments that modern robots will need to face. Planning methods often struggle with computational intractability when solving task‐level problems in large‐scale environments ...
Rodrigo Pérez‐Dattari +4 more
wiley +1 more source
International Journal of Antennas and Propagation, 2016 The computation of scattering from multilayer dielectric bodies is studied by using the combined tangential formulation (CTF) of surface integral solution.
B. B. Kong, X. Q. Sheng
doaj +1 more source
Preconditioner for a scattering solver based on the intrusive stochastic Galerkin method accelerated with MLFMM [PDF]
, 2015 We present a preconditioner for an intrusive stochastic Galerkin method (SGM) based scattering solver that also leverages the multilevel fast multipole method (MLFMM).
De Zutter, Daniël +7 more
core +1 more source