Gelfand
- Gelfand is a surname meaning "elephant" in the Yiddish language and may refer to:
Gelfand pair
- In mathematics, a Gelfand pair is a pair (G,K) consisting of a group G and a subgroup K (called an Euler subgroup of G) that satisfies a certain property on restricted representations.
Gelfand representation
- In mathematics, the Gelfand representation in functional analysis (named after I. M. Gelfand) has two related meanings:
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 c
Gelfand–Zeitlin integrable system
- In mathematics, the Gelfand–Zeitlin system (also written Gelfand–Zetlin system, Gelfand–Cetlin system, Gelfand–Tsetlin system) is an integrable system on conjugacy classes of Hermitian matric
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