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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
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TZID:Europe/Paris
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TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20130331T010000
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TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20131027T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20131213T110000
DTEND;TZID=Europe/Paris:20131213T110000
DTSTAMP:20260404T173152
CREATED:20131213T100000Z
LAST-MODIFIED:20211104T094759Z
UID:8167-1386932400-1386932400@www.math.ens.psl.eu
SUMMARY:Pregeometries and definable groups
DESCRIPTION:We describe a recent program for analyzing definable sets and groups in certain model theoretic settings. Those settings include:(a) o-minimal structures (M\, P)\, where M is an ordered group and P is a real closed field defined on a bounded interval (joint work with Peterzil)\,(b) tame expansions (M\, P) of a real closed field M by a predicate P\, such as expansions with o-minimal open core (work in progress with Gunaydin and Hieronymi).The analysis of definable groups first goes through a local level\, where a pertinent notion of a pregeometry and generic elements is each time introduced.
URL:https://www.math.ens.psl.eu/evenement/pregeometries-and-definable-groups/
LOCATION:ENS Salle W
CATEGORIES:Séminaire Géométrie et théorie des modèles
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20131213T141500
DTEND;TZID=Europe/Paris:20131213T141500
DTSTAMP:20260404T173152
CREATED:20131213T131500Z
LAST-MODIFIED:20211104T094759Z
UID:8166-1386944100-1386944100@www.math.ens.psl.eu
SUMMARY:Galois equations on torsion points and the Tate-Voloch conjecture on p-adic fields
DESCRIPTION:The Tate-Voloch conjecture is a statement about p-adic distance from torsion points to subvarieties in a semi-abelian variety defined over C_p. The use of Galois equations on torsion points by Pink and Rossler to prove the Manin-Mumford conjecture can be adapted to prove that conjecture in the case where both the semi-abelian variety and its subvariety are defined over a finite extension of Q_p.In this talk\, we will present such a proof\, and try to give an insight on how this proof differs from the model-theoretic one given by Scanlon.
URL:https://www.math.ens.psl.eu/evenement/galois-equations-on-torsion-points-and-the-tate-voloch-conjecture-on-p-adic-fields/
LOCATION:ENS Salle W
CATEGORIES:Séminaire Géométrie et théorie des modèles
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20131213T160000
DTEND;TZID=Europe/Paris:20131213T160000
DTSTAMP:20260404T173152
CREATED:20131213T150000Z
LAST-MODIFIED:20211104T094719Z
UID:8165-1386950400-1386950400@www.math.ens.psl.eu
SUMMARY:Non-archimedean Yomdin-Gromov parametrizations and points of bounded height
DESCRIPTION:In the spirit of work by Pila-Wilkie (2006) and by Pila (2009)\, we will present bounds on the number of points of bounded height in the non-archimedean context. An important tool to make the determinant method work is provided by a non-archimedean version of the Yomdin – Gromov parameterizing lemma. We wil explain these results\, obtained in joint work with G. Comte and F. Loeser.
URL:https://www.math.ens.psl.eu/evenement/non-archimedean-yomdin-gromov-parametrizations-and-points-of-bounded-height/
LOCATION:ENS Salle W
CATEGORIES:Séminaire Géométrie et théorie des modèles
END:VEVENT
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