Math 2.0

Concept

Real element

Summary

In group theory, a discipline within modern algebra, an element xx of a group GG is called a real element of GG if it belongs to the same conjugacy class as its inverse x−1x^{-1}, that is, if there is a gg in GG with xg=x−1x^g = x^{-1}, where xgx^g is defined as g−1⋅x⋅gg^{-1} \cdot x \cdot g. An element xx of a group GG is called strongly real if there is an involution tt with xt=x−1x^t = x^{-1}.

Further reading

  1. Wikipedia, page 50475634, revision 1121784856, Real element. adopted
About this page
Tag52BNYXGVCV
URIm2://52BNYXGVCV
Aliasesextended-centralizer, strongly-real-element
Kindconcept
WritingW1 stated
Same as
Changed4 November 2026

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