9 citations · 13 across the 14 of their papers we have counts for
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Strang-type preconditioners for solving fractional diffusion equations by boundary value methods
Xian-Ming Gu, Ting-Zhu Huang, Xi-Le Zhao +2
The finite difference scheme with the shifted Grünwarld formula is employed to semi-discrete the fractional diffusion equations. This spatial discretization can reduce to the large…
A Symmetric Rank-one Quasi Newton Method for Non-negative Matrix Factorization
Shu-Zhen Lai, Hou-Biao Li, Zu-Tao Zhang
As we all known, the nonnegative matrix factorization (NMF) is a dimension reduction method that has been widely used in image processing, text compressing and signal processing et…
A SQMRCGstab Algorithm for Families of Shifted Linear Systems
Jing Meng, Pei-yong Zhu, Hou-Biao Li
This study is mainly focused on iterative solutions to shifted linear systems arising from a Quantum Chromodynamics (QCD) problem. To solve such system efficiently, we explore a ki…
Numerical Gradient Schemes for Heat Equations Based on the Collocation Polynomial and Hermite Interpolation
Hou-Biao Li, Ming-Yan Song, Er-Jie Zhong +1
As is well-known, the advantage of the high-order compact difference scheme (H-OCD) is unconditionally stable and convergent with the order under the maximum norm. In…
A note on the growth factor in Gaussian elimination for Higham matrices
Qian-Ping Guo, Xian-Ming Gu, Hou-biao Li
The Higham matrix is a complex symmetric matrix A=B+iC, where both B and C are real, symmetric and positive definite and is the imaginary unit. For any Higha…