Luo, Xingjun Multilevel iteration methods for solving linear operator equations of the first kind. (English) Zbl 1174.65408 Northeast. Math. J. 24, No. 1, 1-9 (2008). MSC: 65J10 65J20 47A52 PDFBibTeX XMLCite \textit{X. Luo}, Northeast. Math. J. 24, No. 1, 1--9 (2008; Zbl 1174.65408)
Li, Feng; Li, Ronghua Multi-level splitting methods solving difference equations. (English) Zbl 0898.65059 Northeast. Math. J. 13, No. 2, 229-246 (1997). Reviewer: J.Mandel (Denver) MSC: 65N06 65F10 65F35 65N55 35J05 65N12 PDFBibTeX XMLCite \textit{F. Li} and \textit{R. Li}, Northeast. Math. J. 13, No. 2, 229--246 (1997; Zbl 0898.65059)