Rogava, Jemal; Gulua, David Reduction of a four-layer semi-discrete scheme for an abstract evolution equation to two-layer schemes and estimation of the approximate solution errors by using associated polynomials. (English) Zbl 1511.65085 Bull. Georgian Natl. Acad. Sci. (N.S.) 15, No. 2, 23-30 (2021). MSC: 65M06 65L05 65M15 35B25 65J08 PDFBibTeX XMLCite \textit{J. Rogava} and \textit{D. Gulua}, Bull. Georgian Natl. Acad. Sci. (N.S.) 15, No. 2, 23--30 (2021; Zbl 1511.65085) Full Text: Link
Prangishvili, Archil; Kakubava, Revaz; Gulua, David; Gulua, Ekaterine An open priority queuing system for two maintenance operations. (English) Zbl 1391.90195 Bull. Georgian Natl. Acad. Sci. (N.S.) 11, No. 4, 22-27 (2017). MSC: 90B22 90B25 PDFBibTeX XMLCite \textit{A. Prangishvili} et al., Bull. Georgian Natl. Acad. Sci. (N.S.) 11, No. 4, 22--27 (2017; Zbl 1391.90195) Full Text: Link
Gulua, David; Bibiluri, Malkhaz; Shulaia, Dazmir On one singular integral equation arising from the radiative transfer theory. (English) Zbl 1343.45002 Bull. Georgian Natl. Acad. Sci. (N.S.) 9, No. 1, 24-30 (2015). Reviewer: Alexei Yu. Karlovich (Lisboa) MSC: 45E05 85A25 PDFBibTeX XMLCite \textit{D. Gulua} et al., Bull. Georgian Natl. Acad. Sci. (N.S.) 9, No. 1, 24--30 (2015; Zbl 1343.45002) Full Text: Link
Rogava, Jemal; Gulua, David On the convergence of the Crank-Nicolson semidiscrete scheme for an evolutionary equation in the Banach space. (English) Zbl 1310.65105 Bull. Georgian Natl. Acad. Sci. (N.S.) 7, No. 2, 21-32 (2013). MSC: 65M12 65M06 65M20 35K90 34G10 65M15 PDFBibTeX XMLCite \textit{J. Rogava} and \textit{D. Gulua}, Bull. Georgian Natl. Acad. Sci. (N.S.) 7, No. 2, 21--32 (2013; Zbl 1310.65105) Full Text: Link