Qian, Jianliang; Liu, Jiaqi; Yang, Guang A class of finite element–multigrid methods. (Chinese. English summary) Zbl 0970.65576 J. Harbin Inst. Technol. 28, No. 3, 1-6 (1996). MSC: 65N55 PDFBibTeX XMLCite \textit{J. Qian} et al., J. Harbin Inst. Technol. 28, No. 3, 1--6 (1996; Zbl 0970.65576)
Qian, Jianliang; Yang, Guang; Liu, Jiaqi A pulse spectrum technique–multigrid method iterative algorithm for the inverse problem of the two-dimensional elastic wave equation. (Chinese. English summary) Zbl 0970.74513 J. Harbin Inst. Technol. 28, No. 1, 6-12 (1996). MSC: 74S30 74J25 PDFBibTeX XMLCite \textit{J. Qian} et al., J. Harbin Inst. Technol. 28, No. 1, 6--12 (1996; Zbl 0970.74513)