Kogan, L. A.; Tashpulatov, B. T.; Dusumbetov, A. D. Representation of integers by quadratic forms. (Predstavlenie chisel kvadratichnymi formami.) (Russian) Zbl 0695.10019 Tashkentskij Gosudarstvennyj Pedagogicheskij Institut Imeni Nizami. Tashkent: Fan. 132 p. R. 1.20 (1989). Reviewer: M.Peters MSC: 11E45 11-02 11E12 11E16 11F11 11E41 PDFBibTeX XMLCite \textit{L. A. Kogan} et al., Predstavlenie chisel kvadratichnymi formami (Russian). Tashkent: Fan (1989; Zbl 0695.10019)
Kogan, L. A.; Tashpulatov, B. T.; Faĭziev, S. R. Representation of numbers by quadratic forms. (Представление чисел квадратичными формами.) (Russian) Zbl 0512.10015 Ministerstvo Prosveshcheniya Uzbekskoĭ SSR. Dzhizakskiĭ Gosudarstvennyĭ Pedagogicheskiĭ Institut. Tashkent: Izdatel’stvo ”Fan” Uzbekskoĭ SSR. 228 p. R. 1.20 (1980). Reviewer: Meinhard Peters (Münster) MSC: 11E25 11-02 11E45 11F11 11F27 11F46 11D85 PDFBibTeX XML
Kogan, L. A. Liouville formulae and cusp forms that are generated by generalized binary theta-series. (Liouvillesche Formeln und Spitzen-Formen, die von binären Thetareihen erzeugt sind.) (Russian. German summary) Zbl 0215.34804 Litov. Mat. Sb. 9, 519-533 (1969). Reviewer: Meinhard Peters (Münster) MSC: 11F27 11F12 11E25 11E45 PDFBibTeX XMLCite \textit{L. A. Kogan}, Litov. Mat. Sb. 9, 519--533 (1969; Zbl 0215.34804)