''Gelfand'' is a surname meaning "

elephant Elephants are the largest existing land animals. Three living species are currently recognised: the African bush elephant, the African forest elephant, and the Asian elephant. They are the only surviving members of the family Elephantidae ...

" in the

Yiddish language Yiddish (, or , ''yidish'' or ''idish'', , ; , ''Yidish-Taytsh'', ) is a West Germanic language historically spoken by Ashkenazi Jews. It originated during the 9th century in Central Europe, providing the nascent Ashkenazi community with a ver ...

and may refer to: * People: **

Alan Gelfand Alan "Ollie" Gelfand (born 1963 in New York City) is an American skateboarder and the inventor of the ollie, a skateboarding trick. Life and career Gelfand moved from New York City to Hollywood, Florida with his family in 1972. He started skate ...

, the inventor of the ollie, a skateboarding move **

Alan E. Gelfand Alan E. Gelfand (born April 17, 1945) is an American statistician, and is currently the James B. Duke Professor of Statistics and Decision Sciences at Duke University. Gelfand’s research includes substantial contributions to the fields of Bayes ...

, a statistician **

Boris Gelfand Boris Gelfand ( he, בוריס אברמוביץ' גלפנד; be, Барыс Абрамавіч Гельфанд, Barys Abramavich Hel'fand; russian: Борис Абрамович Гельфанд, Boris Abramovich Gel'fand; born 24 June 1968) ...

, a chess grandmaster **

Israel Gelfand Israel Moiseevich Gelfand, also written Israïl Moyseyovich Gel'fand, or Izrail M. Gelfand ( yi, ישראל געלפֿאַנד, russian: Изра́иль Моисе́евич Гельфа́нд, uk, Ізраїль Мойсейович Гел� ...

, a mathematician, **

Mikhail Gelfand Mikhail Sergeyevich Gelfand (russian: Михаил Сергеевич Гельфанд; born 25 October 1963) is a Russian Bioinformaticist and molecular biologist. He is a member of Academia Europaea, Vice President Biomedical Research of Skolko ...

, a molecular biologist and bioinformacisist, a grandson of Israel Gelfand ** Vladimir Gelfand, a Soviet-Jewish writer * Notions in mathematics (named after

): ** the

Gelfand representation In mathematics, the Gelfand representation in functional analysis (named after I. M. Gelfand) is either of two things: * a way of representing commutative Banach algebras as algebras of continuous functions; * the fact that for commutative C*-al ...

, in mathematics, allows a complete characterization of commutative C*-algebras as algebras of continuous complex-valued functions ** the

Gelfand–Naimark–Segal construction In functional analysis, a discipline within mathematics, given a C*-algebra ''A'', the Gelfand–Naimark–Segal construction establishes a correspondence between cyclic *-representations of ''A'' and certain linear functionals on ''A'' (called ' ...

** the

Gelfand–Naimark theorem In mathematics, the Gelfand–Naimark theorem states that an arbitrary C*-algebra ''A'' is isometrically *-isomorphic to a C*-subalgebra of bounded operators on a Hilbert space. This result was proven by Israel Gelfand and Mark Naimark in 194 ...

** the

Gelfand–Mazur theorem 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 isomo ...

** a Gelfand pair, a pair (''G'',''K'') consisting of a locally compact unimodular group ''G'' and a compact subgroup ''K'' ** a Gelfand triple, a construction designed to link the distribution (test function) and square-integrable aspects of functional analysis

See also