Definition of "automorphism" []

• An isomorphism of a mathematical object or system of objects onto itself. (noun)

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• "This has as its automorphism groups F_4 whose root space is a minimal tessellation in 4 dimensions and G_2."
• "But since Ï is an automorphism, it also preserves function application, so that Ï (f (U)) = Ïf (Ï (U))."
• "Sym (V) is also a model of set theory with set of atoms A, and Ï induces an automorphism of Sym (V)."