Were both Alexander Kronrod and Leonty Magnitsky mathematicians?
Leonty Magnitsky Leonty Filippovich Magnitsky (Russian: Леонтий Филиппович Магницкий ), born Telyatin (Russian: Телятин ), (June 9, 1669, Ostashkov – October 19, 1739, Moscow) was a Russian mathematician and educator.
David Khorol David Moiseevich Khorol (Russian: Давид Моисеевич Хорол ) (February 4, 1920 — February 19, 1990) was Soviet Jewish mathematician and aviation and rocket designer, professor, "doktor" of technical sciences. His last position was deputy general director of the Central Design Bureau "Geophysics" (ЦКБ «Геофизика»), known for its rocket design.