Q:- death place is moscow , russia    - doctoral students is francesco pan dell ` accio alexander isaev stepan orevkov victor    - known for is contributions to mathematical analysis    - death date is 9 may 2004    - field is mathematician    - doctoral advisor is andrey kolmogorov      - work institution is steklov institute    - birth date is 25 june 1931      - nationality is russian    - birth place is moscow , soviet union    - alma mater is moscow state university    Given the details above, guess who could this information be about.
A:
anatoli georgievich vitushkin