It is shown that a semigroup S is finitely generated whenever the semigroup w x algebra K S is right Noetherian and has finite Gelfand᎐Kirillov dimension or S is a Malcev nilpotent semigroup. If, furthermore, S is a submonoid of a finitely w x generated nilpotent-by-finite group G, then K S is right
Semigroup Algebras and Noetherian Maximal Orders
✍ Scribed by Eric Jespers; Jan Okniński
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 220 KB
- Volume
- 238
- Category
- Article
- ISSN
- 0021-8693
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✦ Synopsis
In this paper we describe when a monoid algebra K S is a noetherian PI domain which is a maximal order. Our work relies on the study of the height one w x primes of K S and of the minimal primes of the monoid S and leads to a characterization purely in terms of S. It turns out that the primes P intersecting S plays a crucial role, and therefore we reduce the problem to certain ''local'' monoids S , that is, monoids with only one minimal prime. However, we illustrate P
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