BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Département de mathématiques et applications - ECPv6.2.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Département de mathématiques et applications
X-ORIGINAL-URL:https://www.math.ens.psl.eu
X-WR-CALDESC:évènements pour Département de mathématiques et applications
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20221030T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20220215T160000
DTEND;TZID=Europe/Paris:20220215T173000
DTSTAMP:20260406T074414
CREATED:20220207T145840Z
LAST-MODIFIED:20220211T161554Z
UID:15168-1644940800-1644946200@www.math.ens.psl.eu
SUMMARY:Groups definable in partial differential fields with an automorphism
DESCRIPTION:This is a joint work with Ronald Bustamante Medina and Zoé Chatzidakis.\nIn this talk we are interested in differential and difference fields from the model-theoretic point of view. A differential field is a field with a set of commuting derivations and a difference-differential field is a differential field equipped with an automorphism which commutes with the derivations.\nCassidy studied definable groups in differentially closed fields\, in particular she studied Zariski dense definable subgroups of simple algebraic groups and showed that they are isomorphic to the rational points of an algebraic group over some definable field. In this talk we study groups definable in existentially closed difference-differential fields. In particular\, we study Zariski dense definable subgroups of simple algebraic groups\, and show an\nanalogue of Phyllis Cassidy’s result for partial differential fields.
URL:https://www.math.ens.psl.eu/evenement/groups-definable-in-partial-differential-fields-with-an-automorphism/
LOCATION:Sophie Germain salle 1016.
CATEGORIES:Théorie des Modèles et Groupes
END:VEVENT
END:VCALENDAR