Valuation Rings in Ore Extensions
✍ Scribed by H.H Brungs; M Schröder
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 137 KB
- Volume
- 235
- Category
- Article
- ISSN
- 0021-8693
No coin nor oath required. For personal study only.
✦ Synopsis
Extensions of valuation rings V of a skew field K are considered in the skew Ž . field F s K x, for a monomorphism of K. At least two such extensions exist if is an automorphism, but no extension may exist if is a monomorphism only. There exist extensions R Ž a. of V in F with xR Ž a. s aR Ž a. for every non-zero a in K if and only if V is invariant and is compatible with V.
📜 SIMILAR VOLUMES
## Abstract Let __K__ be the quotient field of a 2‐dimensional regular local ring (__R, m__) and let __v__ be a prime divisor of __R__, i.e., a valuation of __K__ birationally dominating __R__ which is residually transcendental over __R__. Zariski showed that: such prime divisor __v__ is uniquely a