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Preprint Number 2123
2123. Will Johnson Type-definable NIP fields are Artin-Schreier closed E-mail: Submission date: 8 January 2022 Abstract: Let K be a type-definable infinite field in an NIP theory. If K has characteristic p > 0, then K is Artin-Schreier closed (it has no Artin-Schreier extensions). As a consequence, p does not divide the degree of any finite separable extension of K. This generalizes a theorem of Kaplan, Scanlon, and Wagner. Mathematics Subject Classification: 03C45, 03C60 Keywords and phrases: |
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