Theorem 1 [Be, Corollary 2.1]. Each permutation in the alternating group A n , n 2, is a product of two l-cycles in S n if and only if either w 3n 4 x l n or n=4 and l=2. Note. Theorem 1 implies that when n=4 every even permutation is a product of two l-cycles if and only if 2 l 4. The aim of the
Products of powers in groups
β Scribed by Roger Lyndon
- Publisher
- John Wiley and Sons
- Year
- 1973
- Tongue
- English
- Weight
- 168 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0010-3640
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π SIMILAR VOLUMES
This paper answers a question posed by Jean-Pierre Serre; namely, a proof is given that if V is a semisimple finite dimensional representation of a group G over Ε½ . m a field K of characteristic p ) 0, and m dim V y mp, then H V is again a K semisimple representation of G.
A group G is said to be conjugacy separable if for each pair of elements x y β G such that x and y are not conjugate in G, there exists a finite homomorphic image αΈ of G such that the images of x y are not conjugate in αΈ . In this note, we show that the tree products of finitely many conjugacy separa