- #1
Artusartos
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Page 5 in this link:
http://doctorh.umwblogs.org/files/2010/10/honors_brown.pdf
I couldn't really understand the difference between the internal version and the external version of the semidirect product...don't they both say the same thing?
[tex] (h_1, n_1)(h_2,n_2) = (h_1h_2, \phi_{h_2^{-1}}(n_1)n_2)[/tex]?
Thanks in advance
http://doctorh.umwblogs.org/files/2010/10/honors_brown.pdf
I couldn't really understand the difference between the internal version and the external version of the semidirect product...don't they both say the same thing?
[tex] (h_1, n_1)(h_2,n_2) = (h_1h_2, \phi_{h_2^{-1}}(n_1)n_2)[/tex]?
Thanks in advance