Sapagovas, Mifodij; Skirmantas, Rimantas Construction of high order accuracy symmetrized difference schemes for weakly nonlinear elliptic equations. (Russian. English summary) Zbl 0562.65067 Differ. Uravn. Primen. 35, 58-65 (1984). MSC: 65N12 35J65 PDFBibTeX XMLCite \textit{M. Sapagovas} and \textit{R. Skirmantas}, Differ. Uravn. Primen. 35, 58--65 (1984; Zbl 0562.65067)
Sapagovas, Mifodij; Skirmantas, Rimantas Numerical experiments of the application of difference schemes of high order accuracy to quasilinear equations. (Russian. English summary) Zbl 0559.65078 Differ. Uravn. Primen. 33, 93-109 (1983). MSC: 65N22 35J65 PDFBibTeX XMLCite \textit{M. Sapagovas} and \textit{R. Skirmantas}, Differ. Uravn. Primen. 33, 93--109 (1983; Zbl 0559.65078)
Skirmantas, Rimantas High-order accuracy difference schemes and self-adjointness. (Russian) Zbl 0464.65061 Differ. Uravn. Primen. 26, 39-52 (1980). MSC: 65N12 65N06 35J65 PDFBibTeX XMLCite \textit{R. Skirmantas}, Differ. Uravn. Primen. 26, 39--52 (1980; Zbl 0464.65061)