2 papers
math.NA2026
The double splitting iteration method for solving the large indefinite least squares problem
Jun Li, Lingsheng Meng
Addressing large-scale indefinite least squares (ILS) problem poses notable computational bottlenecks in the field of numerical linear algebra. State-of-the-art iterative schemes f…
math.NA2025
The GMRES method for solving the large indefinite least squares problem via an accelerated preconditioner
Jun Li, Lingsheng Meng
In this research, to solve the large indefinite least squares problem, we firstly transform its normal equation into a sparse block three-by-three linear systems, then use GMRES me…