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- Newsgroups: sci.math
- Path: sparky!uunet!snorkelwacker.mit.edu!tamsun.tamu.edu!rlm7638
- From: rlm7638@tamsun.tamu.edu (Jack McKinney)
- Subject: Looking for name of group of order 12...
- Message-ID: <1992Nov18.194440.4819@tamsun.tamu.edu>
- Organization: Texas A&M University, College Station
- Date: Wed, 18 Nov 1992 19:44:40 GMT
- Lines: 17
-
-
- Here I go, with yet another group theory question. This one is of
- etymology. There are five groups of order 12: The cyclic group of order
- 12 (Z_12), the direct product of the cyclic groups of orders 2 and 6
- (Z_2 x Z_6), The alternating group on 4 objects (A_4), the dihedral
- group of a 6-sided object (D_6), and then one more. This last one
- I have always seen written as just 'T'. Can anyone tell me where this
- name comes from?
-
- T={<a,b>: a^6=e, a^3=b^2, ba=a^5 b}
-
- +---------------------------------------------------+------------------------+
- | "I'll never be creul to electrons in a particle | Jack McKinney |
- | accelerator again." | jmckinney@tamu.edu |
- | -the Fourth Doctor, "The Pirate Planet", +------------------------+
- | Dr. Who | R[x] / <x^2+1> = C!!!! |
- +---------------------------------------------------+------------------------+
-