Nikolai Ivanov (mathematician)
= Nikolai Ivanov (mathematician)
{wiki=Nikolai_Ivanov_(mathematician)}
Nikolai Ivanov is a Russian mathematician known for his contributions to various fields within mathematics, particularly in topology and algebraic topology. He has made significant advances in the study of manifolds, homotopy theory, and the topology of higher-dimensional spaces. Ivanov has also been involved in research related to geometric group theory and the study of symplectic structures.