Ervand Kogbetliantz

Ervand George Kogbetliantz (Armenian: Երվանդ Գևորգի Կողբետլյանց; February 22, 1888, in Rostov-on-the-Don – November 5, 1974 in Paris, France) was a French and American mathematician of Armenian descent (born in Russian Empire) and the first president of the Yerevan State University.

[1] His mathematical work was mainly on infinite series, on the theory of orthogonal polynomials, on an algorithm for singular value decomposition which bears his name, on algorithms for the evaluation of elementary functions in computers, and the enumeration of prime elements of the Gaussian integers.

He was working at his death with Bobby Fischer on a game of chess for three people.

In the early 1950s, he was a consultant for IBM in New York City and taught at Columbia University.

Prior to moving back to Paris and retiring, he was a professor at Rockefeller University.