Nilpotency class: Difference between revisions

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===Symbol-free definition===
===Symbol-free definition===


For a [[nilpotent group]], the '''nilpotence class''' is defined in any of the following equivalent ways:
For a [[nilpotent group]], the '''nilpotency class''' or '''nilpotence class''' is defined in any of the following equivalent ways:


* It is the length of the [[upper central series]]
* It is the length of the [[upper central series]]

Revision as of 15:23, 26 March 2008

This article defines an arithmetic function on a restricted class of groups, namely: nilpotent groups

Definition

Symbol-free definition

For a nilpotent group, the nilpotency class or nilpotence class is defined in any of the following equivalent ways:

A group is said to be of class c if its nilpotence class is less than or equal to c.