Čiegis, Rajm.; Čiegis, Rem. Spectral stability of economical difference schemes. (Russian. English summary) Zbl 0753.65077 Differ. Uravn. Primen. 46, 90-97 (1991). Reviewer: J.Albrycht (Poznań) MSC: 65M12 65M06 35K15 PDFBibTeX XMLCite \textit{Rajm. Čiegis} and \textit{Rem. Čiegis}, Differ. Uravn. Primen. 46, 90--97 (1991; Zbl 0753.65077)
Norvaišas, Saulyus; Čiegis, Rajmondas Investigation of an implicit difference scheme for a problem in laser termochemistry. (Russian) Zbl 0825.65060 Differ. Uravn. Primen. 46, 83-89 (1991). MSC: 65M06 80A50 92E99 35Q72 PDFBibTeX XMLCite \textit{S. Norvaišas} and \textit{R. Čiegis}, Differ. Uravn. Primen. 46, 83--89 (1991; Zbl 0825.65060)
Bajarūnas, Eitvydas; Čiegis, Rajmondas An adaptive difference scheme for nonstationary one-dimensional problems. (Russian. English summary) Zbl 0753.65076 Differ. Uravn. Primen. 46, 25-41 (1991). Reviewer: J.Albrycht (Poznań) MSC: 65M12 65M06 PDFBibTeX XMLCite \textit{E. Bajarūnas} and \textit{R. Čiegis}, Differ. Uravn. Primen. 46, 25--41 (1991; Zbl 0753.65076)
Kanapenas, R.; Norvajshas, S.; Petrushkyavichyus, R.; Chegis, R. Numerical solution for the problem of laser heating of metals. (Russian. English summary) Zbl 0657.65135 Differ. Uravn. Primen. 43, 49-67 (1988). MSC: 65Z05 65N12 65N06 35K05 80A20 78A40 78A45 78A55 PDFBibTeX XMLCite \textit{R. Kanapenas} et al., Differ. Uravn. Primen. 43, 49--67 (1988; Zbl 0657.65135)
Chegis, R.; Norvajshas, S. On solvability of the stationary problem of nonlinear interaction of optical waves. (Russian. English summary) Zbl 0655.35070 Differ. Uravn. Primen. 41, 16-26 (1987). Reviewer: O.Zhautykov MSC: 35Q99 35G20 78A05 35B40 35B05 PDFBibTeX XMLCite \textit{R. Chegis} and \textit{S. Norvajshas}, Differ. Uravn. Primen. 41, 16--26 (1987; Zbl 0655.35070)
Kajrite, G.; Norvajshas, S.; Chegis, R. On the question of numerical integration of a certain ordinary differential equation. (Russian. English summary) Zbl 0634.65058 Differ. Uravn. Primen. 41, 9-15 (1987). Reviewer: M.M.Konstantinov MSC: 65L05 78A15 PDFBibTeX XMLCite \textit{G. Kajrite} et al., Differ. Uravn. Primen. 41, 9--15 (1987; Zbl 0634.65058)
Buda, V.; Chegis, R.; Sapagovas, M. A model of multiple diffusion from a limited source. (Russian. English summary) Zbl 0621.76097 Differ. Uravn. Primen. 38, 9-14 (1986). MSC: 76R50 76M99 PDFBibTeX XMLCite \textit{V. Buda} et al., Differ. Uravn. Primen. 38, 9--14 (1986; Zbl 0621.76097)
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)
Chegis, Raimondas; Kajrite, Gené Numerical calculations of non-stationary scattering in the simplest media. (Russian. English summary) Zbl 0613.65131 Differ. Uravn. Primen. 39, 68-84 (1986). MSC: 65Z05 65N12 65N06 78A45 35J65 PDFBibTeX XMLCite \textit{R. Chegis} and \textit{G. Kajrite}, Differ. Uravn. Primen. 39, 68--84 (1986; Zbl 0613.65131)
Chegis, Raimondas; Buda, Vitautas On the question of numerical simulation of a field-effect transistor on the basis \(G_ aA_ s\). (Russian. English summary) Zbl 0613.65130 Differ. Uravn. Primen. 39, 48-67 (1986). MSC: 65Z05 68W30 35J05 78A55 PDFBibTeX XMLCite \textit{R. Chegis} and \textit{V. Buda}, Differ. Uravn. Primen. 39, 48--67 (1986; Zbl 0613.65130)
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)
Chegis, Rajmondas Investigation of the heat conduction problem with an integral condition in the case of variable coefficients. (Russian. English summary) Zbl 0564.35050 Differ. Uravn. Primen. 35, 83-92 (1984). MSC: 35K20 35A22 35A35 PDFBibTeX XMLCite \textit{R. Chegis}, Differ. Uravn. Primen. 35, 83--92 (1984; Zbl 0564.35050)
Chegis, Rajmondas Investigation of the two-dimensional heat conduction problem with a nonlocal condition. (Russian. English summary) Zbl 0564.35049 Differ. Uravn. Primen. 35, 74-82 (1984). MSC: 35K20 35A05 65N12 PDFBibTeX XMLCite \textit{R. Chegis}, Differ. Uravn. Primen. 35, 74--82 (1984; Zbl 0564.35049)
Chegis, Rajmondas On the question of convergence of the two-stage gradient descent method. (Russian. English summary) Zbl 0562.65016 Differ. Uravn. Primen. 35, 66-73 (1984). MSC: 65F10 PDFBibTeX XMLCite \textit{R. Chegis}, Differ. Uravn. Primen. 35, 66--73 (1984; Zbl 0562.65016)
Chegis, Rajmondas Some integral and summation estimates of the Green function. (Russian. English summary) Zbl 0557.34019 Differ. Uravn. Primen. 33, 134-141 (1983). MSC: 34B27 PDFBibTeX XMLCite \textit{R. Chegis}, Differ. Uravn. Primen. 33, 134--141 (1983; Zbl 0557.34019)
Sapagovas, M.; Chegis, R. Some integral estimates of the Green function. (Russian. English summary) Zbl 0552.34030 Differ. Uravn. Primen. 31, 73-83 (1982). Reviewer: B.Šehter MSC: 34B27 PDFBibTeX XMLCite \textit{M. Sapagovas} and \textit{R. Chegis}, Differ. Uravn. Primen. 31, 73--83 (1982; Zbl 0552.34030)
Chegis, R. Solution of a boundary value problem of the heat conductivity theory with a nonclassical condition. (Russian) Zbl 0518.35040 Differ. Uravn. Primen. 32, 134-144 (1982). MSC: 35K05 35A05 80A20 PDFBibTeX XMLCite \textit{R. Chegis}, Differ. Uravn. Primen. 32, 134--144 (1982; Zbl 0518.35040)