Boris Bukreev

He worked on differential invariants and parameters in the theory of surfaces, and also wrote many papers on the history of mathematics.

[1] Boris Bukreev was born in Lgov, Kursk Governorate of Russian Empire in the family of a schoolteacher.

In 1880, Bukreev was awarded a gold medal by the Faculty of Physics and Mathematics as the best student.

This became a topic of his Master's thesis titled "On the expansion of transcendental function in partial fractions.

After publishing his thesis Bukreev went abroad and took lectures of Karl Weierstrass, Lazarus Fuchs, and Leopold Kronecker in Berlin.

Bukreev continued actively working in mathematics up to the very end of his life; his last paper was published when he was 98.