Shejbak, T.; Chegis, R. Application of iterative methods for the solution of a class of elliptic difference equations in a rectangle. (Russian. English summary) Zbl 0621.65107 Differ. Uravn. Primen. 38, 100-111 (1986). MSC: 65N22 65F10 35J25 PDFBibTeX XMLCite \textit{T. Shejbak} and \textit{R. Chegis}, Differ. Uravn. Primen. 38, 100--111 (1986; Zbl 0621.65107)
Shejbak, Tadeusz; Chegis, Raimondas Efficient algorithms for solution of a three-dimensional elliptic problem with discontinuous coefficients. (Russian. English summary) Zbl 0613.65106 Differ. Uravn. Primen. 39, 85-92 (1986). MSC: 65N22 65F10 35J25 PDFBibTeX XMLCite \textit{T. Shejbak} and \textit{R. Chegis}, Differ. Uravn. Primen. 39, 85--92 (1986; Zbl 0613.65106)
Chegis, Raímondas; Shejbak, Tadeusz Application of iterative methods for the solution of problems with discontinuous coefficients. (Russian. English summary) Zbl 0596.65070 Differ. Uravn. Primen. 37, 68-81 (1985). MSC: 65N22 65L10 34B05 35J25 65F10 PDFBibTeX XMLCite \textit{R. Chegis} and \textit{T. Shejbak}, Differ. Uravn. Primen. 37, 68--81 (1985; Zbl 0596.65070)
Shejbak, Tadeusz Construction of an iterative process for the solution of a quasi-linear elliptic equation with discontinuous coefficients. (Russian. English summary) Zbl 0596.65069 Differ. Uravn. Primen. 37, 61-67 (1985). MSC: 65N22 65H10 35J65 PDFBibTeX XMLCite \textit{T. Shejbak}, Differ. Uravn. Primen. 37, 61--67 (1985; Zbl 0596.65069)