Let 0 be a finite set of n elements, R a ring of characteristic p>0 and denote by M k the R-module with k-element subsets of 0 as basis. The set inclusion map : M k ร M k&1 is the homomorphism which associates to a k-element subset 2 the sum (2)=1 1 +1 2 + } } } +1 k of all its (k&1)-element subsets
Power Maps and Completions of Free Groups and of the Modular Group
โ Scribed by John G. Thompson
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 237 KB
- Volume
- 191
- Category
- Article
- ISSN
- 0021-8693
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