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advanced_tools:group_theory:quotient_group [2018/05/15 06:58]
jakobadmin ↷ Links adapted because of a move operation
advanced_tools:group_theory:quotient_group [2023/07/29 01:41] (current)
38.114.114.173 [Student]
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 <tabbox Student> ​ <tabbox Student> ​
  
-A helpful (but slightly wrong) way to think about $G/N$ is that is consist of all elements in $G%$ that are not elements of $N$. A subgroup $N$ is defined through some special condition that its members must fulfil. Formulated differently:​ elements of $N$ are elements of $G$ that have some special property.+A helpful (but slightly wrong) way to think about $G/N$ is that it consist of all elements in $G%$ that are not elements of $N$. A subgroup $N$ is defined through some special condition that its members must fulfil. Formulated differently:​ elements of $N$ are elements of $G$ that have some special property.
  
  For example, the subgroup $n\mathbb{Z}$ of $\mathbb{Z}$ consist of all integers that are a multiple of $n$. (More explicitly: members of $3\mathbb{Z}\subset\mathbb{Z}$ ​ are all integers that are divisible by $3$). Or another example: the subgroup $SO(N)$ of $O(N)$ consists of all $N \times N$ matrices with determinant equal to $1$. Now, $G/N$ consist of all elements that do not have this extra property. //This isn't really correct.// ​  For example, the subgroup $n\mathbb{Z}$ of $\mathbb{Z}$ consist of all integers that are a multiple of $n$. (More explicitly: members of $3\mathbb{Z}\subset\mathbb{Z}$ ​ are all integers that are divisible by $3$). Or another example: the subgroup $SO(N)$ of $O(N)$ consists of all $N \times N$ matrices with determinant equal to $1$. Now, $G/N$ consist of all elements that do not have this extra property. //This isn't really correct.// ​
advanced_tools/group_theory/quotient_group.1526360334.txt.gz · Last modified: 2018/05/15 04:58 (external edit)