The following publications are possibly variants of this publication:
- On the restrictively preconditioned conjugate gradient method for solving saddle point problemsXiao-Fei Peng, Wen Li. ijcm, 93(1):142-159, 2016. [doi]
- Preconditioned Conjugate Gradient Method and Generalized Successive Overrelaxation Method for the Least Squares ProblemsChangjun Li, David J. Evans. ijcm, 79(5):593-602, 2002. [doi]
- The theoretical aspects of the generalized conjugate gradient method pplied to least squares problemsDavid J. Evans 0001, Changjun Li. ijcm, 35(1-4):207-229, 1990. [doi]
- Block Conjugate Gradient algorithms for least squares problemsHao Ji, Yaohang Li. jcam, 317:203-217, 2017. [doi]