Relativeness of the Bertran, Bonne and Tannery classes / O. A. Zagryadskii. //Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2014. ? 6. P. 62-64 [Moscow Univ. Math. Bulletin. Vol. 69, N 6, 2014.].

Three well-known classes of surfaces of revolution are considered. The problem of their intersection and existence of common parts is studied.

Key words: Bertrand, Bonnet, and Tannery surfaces of revolution.