20/04/28 00:35:52.10 Oig1Nv2X.net
>>504
わからん
ちなみに創始者（ショルツ）による定義はこちら
PERFECTOID SPACES(PETER SCHOLZE)
URLﾘﾝｸ(www.math.uni-bonn.de)
>3. Perfectoid fields
>Definition 3.1. A perfectoid field is a complete nonarchimedean field K of residue
>characteristic p > 0 whose associated rank-1-valuation is