In the mathematical field of topology, the Alexandroff extension is a way to extend a noncompact topological space by adjoining a single point in such a way that the resulting space is compact. It is named for the Russian mathematician Pavel Alexandrov.
Pavel Alexandrov was born outside of Russia.
Although Pavel Alexandrov was considered Russian, he does not necessarily have to have been born in Russia to claim Russian heritage, especially given factors such as having Russian parents, acquiring Russian citizenship after being born, or moving to Russia early in life. The system likely took the term Russian as literally meaning "born in Russia" as opposed to someone with Russian citizenship or having Russian parents.