extension

please help me.

if e is a free presentation of the group Q , and

http://latex.codecogs.com/gif.latex?...0%7E%7E%7BQ%7D


http://latex.codecogs.com/gif.latex?...%20N,G]%7D=???

Quote:

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Originally Posted by vernal

please help me.

if e is a free presentation of the group Q , and

http://latex.codecogs.com/gif.latex?...0%7E%7E%7BQ%7D


http://latex.codecogs.com/gif.latex?...%20N,G]%7D=???

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Something seems a little fishy here. Why do we need ?

Quote:

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Originally Posted by Drexel28

Something seems a little fishy here. Why do we need ?

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I don't know!!! I asked why. I saw this in the article. And I think is دnot related to alpha beta gamma.Maybe I did not understand the article.thanks