See also
 | This page lists people with the surname Gelfond. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link. |
Gelfand is a surname meaning "elephant" in the Yiddish language and may refer to:
| This page lists people with the surname Gelfond. If an internal link intending to refer to a specific person led you to this page, you may wish to change that link by adding the person's given name(s) to the link. |
In mathematics, the Gelfand–Naimark theorem states that an arbitrary C*-algebra A is isometrically *-isomorphic to a C*-algebra of bounded operators on a Hilbert space. This result was proven by Israel Gelfand and Mark Naimark in 1943 and was a significant point in the development of the theory of C*-algebras since it established the possibility of considering a C*-algebra as an abstract algebraic entity without reference to particular realizations as an operator algebra.
In mathematics, the Gelfand representation in functional analysis has two related meanings:
Israel Moiseevich Gelfand, also written Israïl Moyseyovich Gel'fand, or Izrail M. Gelfand was a prominent Soviet mathematician. He made significant contributions to many branches of mathematics, including group theory, representation theory and functional analysis. The recipient of many awards, including the Order of Lenin and the first Wolf Prize, he was a Foreign Fellow of the Royal Society and professor at Moscow State University and, after immigrating to the United States shortly before his 76th birthday, at Rutgers University. Gelfand is also a 1994 MacArthur Fellow.
Helfand is a surname meaning "elephant" in Yiddish language. Notable people with the surname include:
Hilbert's seventh problem is one of David Hilbert's list of open mathematical problems posed in 1900. It concerns the irrationality and transcendence of certain numbers.
In mathematics, the Gelfond–Schneider theorem establishes the transcendence of a large class of numbers.
The Gelfond–Schneider constant or Hilbert number is two to the power of the square root of two:
Transcendental number theory is a branch of number theory that investigates transcendental numbers, in both qualitative and quantitative ways.
Boris Abramovich Gelfand is an Belarusian born Israeli chess player. He was awarded the title Grandmaster by FIDE in 1989.
The IMAX Corporation is a Canadian theatre company which designs and manufactures IMAX cameras and projection systems as well as performing film development, production, post production and distribution to IMAX affiliated theatres worldwide. Founded in 1967, it has headquarters in the Toronto area, and operations in New York City and Los Angeles.
Alexander Osipovich Gelfond was a Soviet mathematician. Gelfond's theorem is named after him.
Gelfand is a surname meaning "elephant" in the Yiddish language and may refer to:
The MSU Faculty of Mechanics and Mathematics is one of the most esteemed faculties of Moscow State University, widely regarded by students as one of the toughest faculties in the university.
In operator theory, the Gelfand–Mazur theorem is a theorem named after Israel Gelfand and Stanisław Mazur which states that a Banach algebra with unit over the complex numbers in which every nonzero element is invertible is isometrically isomorphic to the complex numbers, i. e., the only complex Banach algebra that is a division algebra is the complex numbers C.
The World Chess Championship 2012 was a chess match between the defending world champion Viswanathan Anand of India and Boris Gelfand of Israel, winner of the 2011 Candidates Tournament. After sixteen games, including four rapid games, Anand retained his title. The match, held under the auspices of the World Chess Federation FIDE, took place between 10 and 30 May 2012 in the Engineering Building of the State Tretyakov Gallery, Moscow, Russia. The prize fund was US$2.55 million.
James Gelfand is a Canadian jazz pianist who has written scores for film and television.
Michael Gelfond is a Professor in Computer Sciences at Texas Tech University. He received a degree in mathematics from the Steklov Institute of Mathematics in Russia in 1974 and emigrated to the United States in 1978. Gelfond's research interests are in the areas of computational logic and knowledge representation. He is a Fellow of the Association for the Advancement of Artificial Intelligence, and an Area Editor of the journal Theory and Practice of Logic Programming.
Richard L. Gelfond is the chief executive of IMAX Corporation. An investment banker, Gelfond and business partner Bradley Wechsler acquired IMAX Corporation in 1994, with Gelfond serving as Executive Director and Vice Chairman. In 1996, he became co-CEO, later becoming CEO in April 2009.
Helfant is a surname meaning "elephant" in the Yiddish language and may refer to: