Abstract
For any field K and any transitive subgroup G of S8, let G act naturally on K(x1,…,x8) by permuting the variables. We prove that under some minor conditions K(x1,…,x8)G is always K-rational except G is A8 or G is isomorphic to PGL(2,7). We pay special attentions on the characteristic 2 cases.
| Original language | English |
|---|---|
| Pages (from-to) | 272-303 |
| Number of pages | 32 |
| Journal | Journal of Algebra |
| Volume | 518 |
| DOIs | |
| State | Published - 15 Jan 2019 |
Keywords
- Noether's problem
- Rationality
- Symmetric group
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