Sergei (or Sergey) Viktorovich Bochkarev (or Bočkarev) (Сергей Викторович Бочкарёв, born July 24, 1941, in Kuybyshev now renamed Samara) is a Soviet and Russian mathematician.
His dissertation о рядах Фурье по системе Хаара[1] (On Fourier series in the Haar system) was supervised by Pyotr Lavrentyevich Ulyanov.
[2][3] From Moscow State University, Bochkarev received in 1974 his Russian Doctor of Science degree (habilitation).
[4] Since 1971 he has worked at the Steklov Institute of Mathematics, where he holds the title of leading scientific researcher in the Department of Function Theory.
In 1978 he was an Invited Speaker with talk Метод усреднения в теории ортогональных рядов (The averaging method in the theory of orthogonal bases) at the International Congress of Mathematicians in Helsinki.