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The Frobenius-Schur indicator and projective modules

โœ Scribed by Geoffrey R Robinson


Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
318 KB
Volume
126
Category
Article
ISSN
0021-8693

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Computing the Frobeniusโ€“Schur Indicator
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2 ร— 2 . If H is abelian of order 8, we may use K = k H \* , and if H is abelian of order 4 we use K = kD 8 \* . If H โˆผ = D 8 , then in the two possible examples, one has K = kD 8 \* and the other has K = kQ 8 \* . If H โˆผ = 2 ร— 2 ร— 2 then H has two simple degree 2 characters, ฯ‡ 1 and ฯ‡ 2 , and they