Aleksei Viktorovich Chernavskii (or Chernavsky or Černavskii) (Russian: Алексей Викторович Чернавский; 17 January 1938 – 22 December 2023) was a Russian mathematician, specializing in differential geometry and topology.
He enrolled in graduate school at the Steklov Institute of Mathematics.
In 1964 he defended his Candidate of Sciences (PhD) thesis, written under the guidance of Lyudmila Keldysh, on the topic Конечнократные отображения многообразий (Finite-fold mappings of manifolds).
In 1970 he defended his Russian Doctor of Sciences (habilitation) thesis Гомеоморфизмы и топологические вложения многообразий (Homeomorphisms and topological embeddings of manifolds).
[2] Chernavskii worked as a senior researcher at the Steklov Institute until 1973 and from 1973 to 1980 at Yaroslavl State University.
From 1985 he was employed the Kharkevich Institute for Information Transmission Problems of the Russian Academy of Sciences.
[3] From 1993 he was working part-time as a professor at the Department of Higher Geometry and Topology, Faculty of Mechanics and Mathematics, Moscow State University.