Throughout this paper, let R be a complete discrete valuation ring with the residue field k and the quotient field K, and Λ an R-order in a semisimple K-algebra A [CR]. We assume that k is a finite field with q elements. For an A-module V of finite length, we denote by L Λ (V ) the set of full Λ-lat
A Proof of Solomon's Rule
✍ Scribed by Stephanie van Willigenburg
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 104 KB
- Volume
- 206
- Category
- Article
- ISSN
- 0021-8693
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✦ Synopsis
We put forward a proof of Solomon's rule, in terms of matrices, for multiplication in the descent algebra of the symmetric group. Our proof exploits the graphs ÄŽ .4 ny 1 that we can obtain from all the subsets of the set of transpositions, i, i q 1 .
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