Sabir Gusein-Zade

Sabir Medgidovich Gusein-Zade (Russian: Сабир Меджидович Гусейн-Заде; born 29 July 1950 in Moscow[1]) is a Russian mathematician and a specialist in singularity theory and its applications.

[2] He studied at Moscow State University, where he earned his Ph.D. in 1975 under the joint supervision of Sergei Novikov and Vladimir Arnold.

[3] Before entering the university, he had earned a gold medal at the International Mathematical Olympiad.

[2] Gusein-Zade co-authored with V. I. Arnold and A. N. Varchenko the textbook Singularities of Differentiable Maps (published in English by Birkhäuser).

[4] He shares credit with Norbert A'Campo for results on the singularities of plane curves.