Question: What form of math does Grigori Perelman and Askold Khovanskii have in common?
Sentence (from "Askold Khovanskii"): Askold Georgievich Khovanskii (Russian: Аскольд Георгиевич Хованский ; born 3 June 1947, Moscow) is a Russian and Canadian mathematician currently a professor of mathematics at the University of Toronto, Canada.
Relevant evidence: No