Torgashova, N. Eh. A second-order implicit function in codifferential calculus. (English. Russian original) Zbl 0723.49009 Vestn. Leningr. Univ., Math. 23, No. 4, 25-29 (1990); translation from Vestn. Leningr. Univ., Ser. I 1990, No. 4, 23-26 (1990). MSC: 49J50 26B10 PDFBibTeX XMLCite \textit{N. Eh. Torgashova}, Vestn. Leningr. Univ., Math. 23, No. 4, 25--29 (1990; Zbl 0723.49009); translation from Vestn. Leningr. Univ., Ser. I 1990, No. 4, 23--26 (1990)
Torgashova, N. Eh. A modification of the Kakutani theorem and its application. (English. Russian original) Zbl 0694.49009 Vestn. Leningr. Univ., Math. 22, No. 2, 61-63 (1989); translation from Vestn. Leningr. Univ., Ser. I 1989, No. 2, 106-107 (1989). MSC: 49J45 54H25 26B10 54C60 PDFBibTeX XMLCite \textit{N. Eh. Torgashova}, Vestn. Leningr. Univ., Math. 22, No. 2, 61--63 (1989; Zbl 0694.49009); translation from Vestn. Leningr. Univ., Ser. I 1989, No. 2, 106--107 (1989)
Torgashova, N. Eh. Modification of a theorem of Kakutani and its application. (Russian. English summary) Zbl 0674.49014 Vestn. Leningr. Univ., Ser. I 1989, No. 2, 106-107 (1989). MSC: 49J45 54H25 26B10 54C60 PDFBibTeX XMLCite \textit{N. Eh. Torgashova}, Vestn. Leningr. Univ., Ser. I 1989, No. 2, 106--107 (1989; Zbl 0674.49014)
Torgashova, N. Eh. Theorems on the implicit and inverse functions in the quasi-differential calculus. (Russian) Zbl 0746.49016 Optimizatsiya 45(62), 108-116 (1989). Reviewer: M.Vlach (Praha) MSC: 49J52 26B10 PDFBibTeX XMLCite \textit{N. Eh. Torgashova}, Optimizatsiya 45(62), 108--116 (1989; Zbl 0746.49016)