Naum Ilyich Akhiezer (6 March 1901 – 3 June 1980) was a Soviet mathematician

Mathematician

A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....

 of Jewish origin, known for his works in approximation theory

Approximation theory

In mathematics, approximation theory is concerned with how functions can best be approximated with simpler functions, and with quantitatively characterizing the errors introduced thereby...

 and the theory of differential

Differential operator

In mathematics, a differential operator is an operator defined as a function of the differentiation operator. It is helpful, as a matter of notation first, to consider differentiation as an abstract operation, accepting a function and returning another .This article considers only linear operators,...

 and integral operators.. He is also known as the author of classical books on various subjects in analysis

Mathematical analysis

Mathematical analysis, which mathematicians refer to simply as analysis, has its beginnings in the rigorous formulation of infinitesimal calculus. It is a branch of pure mathematics that includes the theories of differentiation, integration and measure, limits, infinite series, and analytic functions...

, and for his work on the history of mathematics

History of mathematics

The area of study known as the history of mathematics is primarily an investigation into the origin of discoveries in mathematics and, to a lesser extent, an investigation into the mathematical methods and notation of the past....

. He is the brother of the theoretical physicist Aleksander Ilyich Akhiezer

Aleksander Ilyich Akhiezer

Aleksander Ilyich Akhiezer wasa Soviet nuclear physicist, known for his scientific contributions to quantum electrodynamics,three hundred articles and eleven scientific books in his area....

.
Naum Akhiezer was born in Cherikov

Cherykaw Raion

Cherykaw Raion is a raion in Mahilyow Voblast, Belarus, the administrative center is Cherykaw....

 (now in Belarus

Belarus

Belarus , officially the Republic of Belarus, is a landlocked country in Eastern Europe, bordered clockwise by Russia to the northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Its capital is Minsk; other major cities include Brest, Grodno , Gomel ,...

). He studied in the Kiev Institute of Public Education (now Taras Shevchenko National University of Kyiv).