The HTML-versions of the summaries of the articles of Alexander Grigoryevich Babenko

1. Sharp Jackson-Stechkin inequality in ${\bf L^2}$ for functions on multidimensional spheres, Mat. Zametki 60 (1996), no. 3, pp. 333-355; English translation: Math. Notes. 60 (1996), no. 3, pp. 248-263. Bibliogr.: 42 ref.
2. On Delsarte scheme of estimating the contact numbers, with V.V. Arestov, Trudy Mat. Inst. im. V.A. Steklova 219 (1997), pp. 44-73; English translation: Proc. of the Steclov Inst. of Math. 219 (1997), pp. 36-65. Bibliogr.: 21 ref.
3. Sharp Jackson-Stechkin inequality in ${\bf L^2}$ on the segment with Jacobi weight and projective spaces, Izv. Ross. Akad. Nauk, Ser. Mat., 68 (1998), no. 6, pp. 27-52.; English translation: Russian Acad. Sci. Math. Izv., 68 (1998), no. 6. Bibliogr.: 49 ref.
4. Estimates of maximal value of angular code distance for 24 and 25 points on unit sphere in ${{\Bbb R}}^4$ Mat. Zametki 68 (2000), no. 4, pp. 483-503; English translation: Math. Notes. 68 (2000), no. 4. Coauthor: V.V. Arestov.