Talk:Center (group theory)

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[edit] Z(G)

Why is the center always written as Z(G)? Z comes from the German zentrum or zahlen (integer)? Albmont (talk) 17:24, 24 March 2009 (UTC)

It comes from wikt:Zentrum (see also de:Zentrum (Algebra)). In German, the centralizer is also denoted by Z, as in de:Zentralisator. Sometimes in English, the center is denoted C = C_G(G), but Z = Z(G) is much more common. JackSchmidt (talk) 17:49, 24 March 2009 (UTC)