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algebraic group
(algebraic geometry) A group that is an algebraic variety.
group theories
plural of group theory
group therapies
plural of group therapy
group object
(category theory) Given a category C, any object X ∈ C on which morphisms are defined corresponding to the group theoretic concepts of a binary operation (called multiplication), identity and inverse, such that multiplication is associative and properties are satisfied that correspond to the existence of inverse elements and the identity element.
group objects
plural of group object
group functors
plural of group functor
group functor
(category theory, algebraic geometry) A group object that is an object in a category of functors; a functor with certain properties that generalise the concept of group.
income group
(economics, sociology) A group in a given population having an income within a specified range.
block group
(US) A small geographical unit that is part of the US censuses
automorphism group
(group theory) The group of automorphisms of a given set or other mathematical object, with the group operation being function composition.