2018 - T1 - WS2 - Model theory and valued fields

Collection 2018 - T1 - WS2 - Model theory and valued fields

Organizer(s) Chatzidakis, Zoé ; Ducros, Antoine ; Hils, Martin ; Scanlon, Tom

Date(s) 05/03/2018 - 09/03/2018

linked URL http://modvac18.math.ens.fr/W2.html

00:00:00 / 00:00:00

13 21

Specialization of difference equations in positive characteristic.

By Ehud Hrushovski

A difference equation over an increasing transformal valued field is known to be analyzable over the residue field. This leads to a dynamical theory of equivalence of finite dimensional difference varieties, provided one knows that the residue field isstably embedded as a pure difference field. In characteristic zero this follows from work of Azgin’s. I will report on joint work with Yuval Dor, settling the question in positive characteristic.

Information about the video

Date of recording 07/03/2018
Date of publication 10/03/2018
Institution IHP
Licence CC BY-NC-ND
Language English
Format MP4

Domain(s)

Logic

MSC codes

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All the collection videos

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Definability of Berkovich curves.

By Jerôme Poineau

51:53

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On definability of valuations of finitely generated fields.

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Specialization of difference equations in positive characteristic.

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Tropical motivic integration.

By Sam Payne

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Uniform p-adic wave front sets and zero loci of functions of C-exp-class.

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Zero dimensional valuations on equicharacteristic noetherian local domains.

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49:52

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Motivic integration and p-adic reductive groups.

By Julia Gordon

54:46

published on March 26, 2018

On the axiomatisation of C_p with roots of unity.

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