Aizik Volpert

Aizik Isaakovich Vol'pert (Russian: Айзик Исаакович Вольперт) (5 June 1923[1][2] – January 2006) (the family name is also transliterated as Volpert[4] or Wolpert[5]) was a Soviet and Israeli mathematician and chemical engineer[6] working in partial differential equations, functions of bounded variation and chemical kinetics.

Vol'pert graduated from Lviv University in 1951, earning the candidate of science degree and the docent title respectively in 1954 and 1956 from the same university:[1] from 1951 on he worked at the Lviv Industrial Forestry Institute.

[1] In 1961 he became senior research fellow[7] while 1962 he earned the "doktor nauk"[2] degree from Moscow State University.

In the 1970s–1980s A. I. Volpert became one of the leaders of the Russian Mathematical Chemistry scientific community.

[11] He was one of the leading contributors to the theory of BV-functions: he introduced the concept of functional superposition, which enabled him to construct a calculus for such functions and applying it in the theory of partial differential equations.