The Maximal Symmetric Ring of Quotients
โ Scribed by Scott Lanning
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 471 KB
- Volume
- 179
- Category
- Article
- ISSN
- 0021-8693
No coin nor oath required. For personal study only.
โฆ Synopsis
The maximal symmetric ring of quotients Q R , as defined by Utumi, is a symmetric version of the maximal ring of quotients of R. For the most part, we w x study this ring when R s K G is a group algebra. For example, we show that if G w x ลฝ . is a free product of groups and if R s K G is a domain, then Q R is usually ลฝ . equal to R. On the other hand, there are certainly groups for which Q R is properly larger than R and we construct a number of such examples.
๐ SIMILAR VOLUMES
We show that S n has at most n 6ร11+o(1) conjugacy classes of primitive maximal subgroups. This improves an n c log 3 n bound given by Babai. We conclude that the number of conjugacy classes of maximal subgroups of S n is of the form ( 12 +o(1))n. It also follows that, for large n, S n has less than