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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
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20130331T010000
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BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20131027T010000
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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130624T100000
DTEND;TZID=Europe/Paris:20130624T100000
DTSTAMP:20260406T032132
CREATED:20130624T080000Z
LAST-MODIFIED:20211104T093858Z
UID:8128-1372068000-1372068000@www.math.ens.psl.eu
SUMMARY:Les hyperrelations canoniques linéaires et leur quantification
DESCRIPTION:
URL:https://www.math.ens.psl.eu/evenement/les-hyperrelations-canoniques-lineaires-et-leur-quantification/
LOCATION:IHP Salle 314
CATEGORIES:Géométrie et Quantification
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130624T111500
DTEND;TZID=Europe/Paris:20130624T111500
DTSTAMP:20260406T032132
CREATED:20130624T091500Z
LAST-MODIFIED:20211104T093858Z
UID:8129-1372072500-1372072500@www.math.ens.psl.eu
SUMMARY:Noncommutative Laurent phenomenon
DESCRIPTION:A composition of birational maps given by Laurent polynomials need not be a Laurent polynomial. When it does\, we talk about the Laurent phenomenon. A large variety of examples of the Laurent phenomenon for commuting variables comes from the theory of cluster algebras introduced by Fomin and Zelevinsky. Much less is know in the noncommutative case. I will discuss various noncommutative Laurent phenomena including examples coming from noncommutative triangulations of polygons and oriented surfaces. As a byproduct of the theory\, I will outline a proof of Laurentness of a noncommutative Kontsevich recursion. The talk is based on our joint work with Arkady Berenstein on noncommutative cluster algebras.
URL:https://www.math.ens.psl.eu/evenement/noncommutative-laurent-phenomenon/
LOCATION:IHP Salle 314
CATEGORIES:Géométrie et Quantification
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130624T143000
DTEND;TZID=Europe/Paris:20130624T143000
DTSTAMP:20260406T032132
CREATED:20130624T123000Z
LAST-MODIFIED:20211104T093858Z
UID:8130-1372084200-1372084200@www.math.ens.psl.eu
SUMMARY:Noncommutative birational transformations
DESCRIPTION:I will present several examples of group actions by birational transformations in free noncommuting variables. One of examples is related to the talk of V.Retakh on noncommutative Laurent phenomenon\, while another (a noncommutative generalization of the Coble action of Coxeter groups of series E) is definitely not cluster.
URL:https://www.math.ens.psl.eu/evenement/noncommutative-birational-transformations/
LOCATION:IHP Salle 314
CATEGORIES:Géométrie et Quantification
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130624T160000
DTEND;TZID=Europe/Paris:20130624T160000
DTSTAMP:20260406T032132
CREATED:20130624T140000Z
LAST-MODIFIED:20211104T094056Z
UID:8131-1372089600-1372089600@www.math.ens.psl.eu
SUMMARY:DAHA and Torus Knots
DESCRIPTION:The talk will be an introduction to the new theory of the refined Jones and Quantum Group invariants of torus knots based on double affine Hecke algebras. This approach provides formulas (though mainly conjectural) for Poincare polynomials of stable Khovanov-Rozansky homology\, also called super-polynomials\, related to the BPS states from String theory. Khovanov-Rozansky theory will be touched upon only a little
URL:https://www.math.ens.psl.eu/evenement/daha-and-torus-knots/
LOCATION:IHP Salle 314
CATEGORIES:Géométrie et Quantification
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