3 papers
math.NA2022
A class of inexact block factorization preconditioners for indefinite matrices with a three-by-three block structure
Sheng-Zhong Song, Zheng-Da Huang
We consider using the preconditioned-Krylov subspace method to solve the system of linear equations with a three-by-three block structure. By making use of the three-by-three block…
math.NA2019
On a progressive and iterative approximation method with memory for least square fitting
Zheng-Da Huang, Hui-Di Wang
In this paper, we present a progressive and iterative approximation method with memory for least square fitting(MLSPIA). It adjusts the control points and the weighted sums iterati…
math-ph2012
Piecewise constant level set algorithm for an inverse elliptic problem in nonlinear electromagnetism
Xiangyin Kong, Zhengfang Zhang, Zhengda Huang
An inverse problem of identifying inhomogeneity or crack in the workpiece made of nonlinear magnetic material is investigated. To recover the shape from the local measurements, a p…