Question: Pyotr Novikov and Sofia Kovalevskaya had what career in common?
Sentence (from "Pyotr Novikov"): Pyotr Sergeyevich Novikov (Russian: Пётр Серге́евич Но́виков ; 15 August 1901, Moscow, Russian Empire – 9 January 1975, Moscow, Soviet Union) was a Soviet mathematician.
Relevant evidence: Yes