While at Kharkov University he played a major role in the Kharkov Mathematical Society, being its vice-president from 1891 to 1898 and president from 1899 until he left Kharkov in 1902.
Habang sa play Kharkov University siya ng isang malaking papel sa Kharkov matematiko Society, ang kanyang pagiging bise-presidente sa 1891 sa 1898 at ibig mula sa 1899 hanggang sa kanyang kaliwa Kharkov sa 1902.