Ervand Kogbetliantz
Encyclopedia
Ervand George Kogbetliantz
Dr. Kogbetliantz was an Armenian/American mathematician and the first president of the Yerevan State University
. He left Russia in 1918. He received a Doctorate in mathematics from the University of Paris
in 1923. 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 on the enumeration of prime elements of the Gaussian integers. He also invented a three-dimensional version of chess
, and was working at his death with Bobby Fischer on a game of chess for three people. When he first came to America (1941) he taught Mathematics at Lehigh University
. 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
.
Dr. Kogbetliantz was an Armenian/American mathematician and the first president of the Yerevan State University
Yerevan State University
Yerevan State University is a university in Yerevan, Armenia. Founded on May 16 1919, it is the largest university in the country with 110 departments. Of its 3,150 employees, 1,190 comprise the teaching staff which includes 25 academicians, 130 professors, 700 docents , and 360 assistant lecturers...
. He left Russia in 1918. He received a Doctorate in mathematics from the University of Paris
University of Paris
The University of Paris was a university located in Paris, France and one of the earliest to be established in Europe. It was founded in the mid 12th century, and officially recognized as a university probably between 1160 and 1250...
in 1923. His mathematical work was mainly on infinite series, on the theory of orthogonal polynomials
Orthogonal polynomials
In mathematics, the classical orthogonal polynomials are the most widely used orthogonal polynomials, and consist of the Hermite polynomials, the Laguerre polynomials, the Jacobi polynomials together with their special cases the ultraspherical polynomials, the Chebyshev polynomials, and the...
, on an algorithm for singular value decomposition
Singular value decomposition
In linear algebra, the singular value decomposition is a factorization of a real or complex matrix, with many useful applications in signal processing and statistics....
which bears his name, on algorithms for the evaluation of elementary functions in computers, and on the enumeration of prime elements of the Gaussian integers. He also invented a three-dimensional version of chess
Three-dimensional chess
Three-dimensional chess is any of various chess variants played on three-dimensional boards. Three-dimensional variants have existed since the late 19th century, one of the oldest being Raumschach , invented in 1907 by Dr. Ferdinand Maack and considered the classic 3D game...
, and was working at his death with Bobby Fischer on a game of chess for three people. When he first came to America (1941) he taught Mathematics at Lehigh University
Lehigh University
Lehigh University is a private, co-educational university located in Bethlehem, Pennsylvania, in the Lehigh Valley region of the United States. It was established in 1865 by Asa Packer as a four-year technical school, but has grown to include studies in a wide variety of disciplines...
. 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
Rockefeller University
The Rockefeller University is a private university offering postgraduate and postdoctoral education. It has a strong concentration in the biological sciences. It is also known for producing numerous Nobel laureates...
.
Articles and books
- Recherches sur la summabilité des séries ultrasphériques par la méthode des moyennes arithmétiques, J. Math. Pures Appl. 9, 107–187, 1924.
- Fundamentals of mathematics from an advanced viewpoint, 4 volumes, Gordon and Breach Science Publishers, 1968.
- (with Alice Krikorian) Handbook of first complex prime numbers, Gordon and Breach Science Publishers, 1971.