
#1
Jun811, 02:22 PM

P: 2

I am extending the standard model symmetry group by introducing discrete symmetry (Z2). The group could be (I, G) or (I, G). Is that called even and odd Z2 symmetry? What is the difference of considering either of them?




#2
Jun811, 03:53 PM

P: 100

There is exactly one finite group of order 2.



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