[過去ﾛｸﾞ] 現代数学の系譜 工学物理雑談 古典ガロア理論も読む78 (1002ﾚｽ)
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466(1): 現代数学の系譜 雑談 古典ガロア理論も読む ◆e.a0E5TtKE 2019/11/04(月)18:03 ID:Qu1TcOyQ(6/28) AAS
>>462 追加

”PARAMETRIC GALOIS EXTENSIONS”
外部ﾘﾝｸ[pdf]:arxiv.org
PARAMETRIC GALOIS EXTENSIONS
FRANC， OIS LEGRAND
Abstract. Given a field k and a finite group H, an H-parametric
extension over k is a finite Galois extension of k(T ) of Galois group
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467(1): 現代数学の系譜 雑談 古典ガロア理論も読む ◆e.a0E5TtKE 2019/11/04(月)18:03 ID:Qu1TcOyQ(7/28) AAS
>>466
つづき

This was introduced in our previous paper [Leg13b] in the number
field case. Given a field k and a finite group G, the question of whether
there is a G-parametric extension over k of group G or not is intermediate between these classical two questions in inverse Galois theory:
- if there is such an extension, then it obviously solves the BeckmannBlack problem for G over k, which asks whether any Galois extension
F/k of group G occurs as a specialization of some k-regular Galois
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