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Algebraic Characterization of Isometries of the Hyperbolic 4-Space
Author(s) -
Krishnendu Gongopadhyay
Publication year - 2012
Publication title -
isrn geometry
Language(s) - English
Resource type - Journals
eISSN - 2090-6315
pISSN - 2090-6307
DOI - 10.5402/2012/757489
Subject(s) - conjugacy class , characterization (materials science) , mathematics , pure mathematics , representation (politics) , algebraic number , relatively hyperbolic group , space (punctuation) , hyperbolic space , hyperbolic manifold , algebra over a field , mathematical analysis , hyperbolic function , computer science , physics , politics , political science , law , optics , operating system
We classify isometries of the real hyperbolic 4-space by their conjugacy classes of centralizers. We use the representation of the isometries by 2×2 quaternionic matrices to obtain this characterization. Another characterization in terms of conjugacy invariants is also given.

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