Seminar
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| Location: | SLMath: Online/Virtual |
To participate in this seminar, please register here: https://www.msri.org/seminars/25206
Keywords and Mathematics Subject Classification (MSC)
Primary Mathematics Subject Classification
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Secondary Mathematics Subject Classification
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Externally Definable Henselian Valuation Rings
To participate in this seminar, please register here: https://www.msri.org/seminars/25206
Abstract:
We investigate the question which henselian valuation rings are (externally) definable in the language of rings on a field K. The situation is very different depending on whether the residue field is algebraically closed or not. The main tool involved is the definability of the canonical p-henselian valuations (J.-Koenigsmann '15). In residue characteristic 0, our question has a satisfying answer - in positive characteristic, many open questions remain. (Work in progress)
No Notes/Supplements UploadedExternally Definable Henselian Valuation Rings
| H.264 Video | 25433_28991_8631_Externally_Definable_Henselian_Valuation_Rings.mp4 |