- death place is bloomington , indiana , usa    - residence is germany , usa    - doctoral students is albert schaeffer    - known for is ergodic theory partial differential equation differential geometry    - death date is 24 july 1983    - field is mathematician    - doctoral advisor is erhard schmidt issai schur      - work institution is mit -rrb- university of munich -lrb- 1944-47 -rrb- indiana univ. bloomington -lrb- -lrb- 1949-83 -rrb- 1931-36 -rrb- university of leipzig -lrb- 1936-42    - birth date is 17 april 1902      - nationality is german    - image is eberhard hopf.jpg    - birth place is salzburg , austria-hungary    - alma mater is university of berlin    Given the details above, guess who could this information be about.
A:
eberhard hopf