Fabrikant, A.; Marinov, M.; Rangelov, T. Properties of solutions of nonlinear filtration equations. (English) Zbl 0702.35029 C. R. Acad. Bulg. Sci. 42, No. 7, 15-18 (1989). Reviewer: G.Boillat MSC: 35B45 35B99 35K10 PDF BibTeX XML Cite \textit{A. Fabrikant} et al., C. R. Acad. Bulg. Sci. 42, No. 7, 15--18 (1989; Zbl 0702.35029) OpenURL
Krystev, D. I. Some properties of the solutions of semilinear elliptic differential equations and inequalities. (English) Zbl 0698.35058 C. R. Acad. Bulg. Sci. 42, No. 7, 23-24 (1989). MSC: 35J65 35B45 PDF BibTeX XML Cite \textit{D. I. Krystev}, C. R. Acad. Bulg. Sci. 42, No. 7, 23--24 (1989; Zbl 0698.35058) OpenURL
Pavlov, Yu. A recurrent algorithm for the construction of the value function. (Russian) Zbl 0688.90009 C. R. Acad. Bulg. Sci. 42, No. 7, 41-42 (1989). Reviewer: Yu.Pavlov MSC: 91B16 91B08 62L20 PDF BibTeX XML Cite \textit{Yu. Pavlov}, C. R. Acad. Bulg. Sci. 42, No. 7, 41--42 (1989; Zbl 0688.90009) OpenURL
Saxena, R. K.; Gupta, O. P.; Kumbhat, R. K. On two-dimensional Weyl fractional calculus. (English) Zbl 0685.44005 C. R. Acad. Bulg. Sci. 42, No. 7, 11-14 (1989). Reviewer: J.Gregor MSC: 44A30 44A10 26A33 PDF BibTeX XML Cite \textit{R. K. Saxena} et al., C. R. Acad. Bulg. Sci. 42, No. 7, 11--14 (1989; Zbl 0685.44005) OpenURL
Makarov, V. L.; Popov, V. A. Direct and converse theorems for numerical methods. (English) Zbl 0682.65072 C. R. Acad. Bulg. Sci. 42, No. 7, 33-36 (1989). Reviewer: V.Subba Rao MSC: 65N35 65R20 35J25 35C15 45B05 PDF BibTeX XML Cite \textit{V. L. Makarov} and \textit{V. A. Popov}, C. R. Acad. Bulg. Sci. 42, No. 7, 33--36 (1989; Zbl 0682.65072) OpenURL
Banchev, V. Ts. On the step-size choice in numerical integration of transient processes. (Russian) Zbl 0682.65032 C. R. Acad. Bulg. Sci. 42, No. 7, 37-39 (1989). Reviewer: O.Vaarmann MSC: 65L05 65L50 34A34 PDF BibTeX XML Cite \textit{V. Ts. Banchev}, C. R. Acad. Bulg. Sci. 42, No. 7, 37--39 (1989; Zbl 0682.65032) OpenURL
Vasil’ev, S. Kh. Fundamental domains of real-valued solutions of the KP equations. (English) Zbl 0682.35098 C. R. Acad. Bulg. Sci. 42, No. 7, 19-22 (1989). Reviewer: N.Kostov MSC: 35Q99 30F20 14K25 PDF BibTeX XML Cite \textit{S. Kh. Vasil'ev}, C. R. Acad. Bulg. Sci. 42, No. 7, 19--22 (1989; Zbl 0682.35098) OpenURL
Pekhlivanov, A. I. Interior estimates of type superconvergence of the gradient in the finite element method. (English) Zbl 0681.65077 C. R. Acad. Bulg. Sci. 42, No. 7, 29-32 (1989). Reviewer: V.V.Kobkov MSC: 65N30 65N15 35J25 PDF BibTeX XML Cite \textit{A. I. Pekhlivanov}, C. R. Acad. Bulg. Sci. 42, No. 7, 29--32 (1989; Zbl 0681.65077) OpenURL
Semerdzhiev, Kh. I.; Yamaleev, R. M. Method for inversion of one class of polynomial matrices. (English) Zbl 0677.15010 C. R. Acad. Bulg. Sci. 42, No. 7, 7-10 (1989). Reviewer: L.Mihalyffy MSC: 15A54 15A09 PDF BibTeX XML Cite \textit{Kh. I. Semerdzhiev} and \textit{R. M. Yamaleev}, C. R. Acad. Bulg. Sci. 42, No. 7, 7--10 (1989; Zbl 0677.15010) OpenURL
Shopov, P. J. Lagrangian-Eulerian numerical method for Navier-Stokes equations with weak boundary conditions at infinity. (English) Zbl 0676.76029 C. R. Acad. Bulg. Sci. 42, No. 7, 25-28 (1989). MSC: 76D05 76M99 PDF BibTeX XML Cite \textit{P. J. Shopov}, C. R. Acad. Bulg. Sci. 42, No. 7, 25--28 (1989; Zbl 0676.76029) OpenURL