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PRODID:-//Département de mathématiques et applications - ECPv6.2.2//NONSGML v1.0//EN
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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:20130331T010000
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BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20131027T010000
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END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130612T140000
DTEND;TZID=Europe/Paris:20130612T150000
DTSTAMP:20260601T043129
CREATED:20130612T120000Z
LAST-MODIFIED:20211104T093839Z
UID:8121-1371045600-1371049200@www.math.ens.psl.eu
SUMMARY:1 dimensional DLA: transient walks
DESCRIPTION:We explore the diameter growth of 1-dimensional long range DLA. I will describe some older results\, and then focus on new results for transient walks. With Amir and Kozma.
URL:https://www.math.ens.psl.eu/evenement/1-dimensional-dla-transient-walks/
CATEGORIES:Séminaire informel de probabilités
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130614T140000
DTEND;TZID=Europe/Paris:20130614T140000
DTSTAMP:20260601T043129
CREATED:20130614T120000Z
LAST-MODIFIED:20211029T072136Z
UID:8126-1371218400-1371218400@www.math.ens.psl.eu
SUMMARY:Approximate cloaking using transformation optics and negative index materials
DESCRIPTION:In this talk\, I will discuss some results and analysis on the approximate cloaking using transformation optics and negative index materials.
URL:https://www.math.ens.psl.eu/evenement/approximate-cloaking-using-transformation-optics-and-negative-index-materials/
LOCATION:ENS Salle W
CATEGORIES:Archives des séminaires,Groupe de travail Mathématiques de l'imagerie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130614T160000
DTEND;TZID=Europe/Paris:20130614T160000
DTSTAMP:20260601T043129
CREATED:20130614T140000Z
LAST-MODIFIED:20211104T093857Z
UID:8127-1371225600-1371225600@www.math.ens.psl.eu
SUMMARY:Approximation of the Dirichlet to Neumann Map of high contrast conductive media
DESCRIPTION:
URL:https://www.math.ens.psl.eu/evenement/approximation-of-the-dirichlet-to-neumann-map-of-high-contrast-conductive-media/
LOCATION:ENS Salle W
CATEGORIES:Groupe de travail Mathématiques de l'imagerie
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130619T140000
DTEND;TZID=Europe/Paris:20130619T150000
DTSTAMP:20260601T043129
CREATED:20130619T120000Z
LAST-MODIFIED:20211104T093840Z
UID:8122-1371650400-1371654000@www.math.ens.psl.eu
SUMMARY:La mesure harmonique des arbres de Galton-Watson
DESCRIPTION:
URL:https://www.math.ens.psl.eu/evenement/la-mesure-harmonique-des-arbres-de-galton-watson/
LOCATION:Salle à confirmer
CATEGORIES:Séminaire informel de probabilités
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130621T110000
DTEND;TZID=Europe/Paris:20130621T110000
DTSTAMP:20260601T043129
CREATED:20130621T090000Z
LAST-MODIFIED:20211104T093840Z
UID:8123-1371812400-1371812400@www.math.ens.psl.eu
SUMMARY:Positivity of line bundles on varieties defined over non-Archimedean fields
DESCRIPTION:For algebraic varieties defined over the complex numbers\, one can study geometry using both algebraic and analytic methods. Over a non-Archimedean field\, one can try to do the same thing using Berkovich spaces. I will discuss positivity notions for metrics on line bundles on varieties defined over discretely or trivially valued fields.
URL:https://www.math.ens.psl.eu/evenement/positivity-of-line-bundles-on-varieties-defined-over-non-archimedean-fields/
LOCATION:IHP Salle 314
CATEGORIES:Séminaire Géométrie et théorie des modèles
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130621T141500
DTEND;TZID=Europe/Paris:20130621T141500
DTSTAMP:20260601T043129
CREATED:20130621T121500Z
LAST-MODIFIED:20211104T093840Z
UID:8124-1371824100-1371824100@www.math.ens.psl.eu
SUMMARY:NIP\, amenability\, and dynamics
DESCRIPTION:I will discuss problems around definably amenable groups in NIP theories\, informed by some invariants coming from topological dynamics.
URL:https://www.math.ens.psl.eu/evenement/nip-amenability-and-dynamics/
LOCATION:IHP Salle 314
CATEGORIES:Séminaire Géométrie et théorie des modèles
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130621T160000
DTEND;TZID=Europe/Paris:20130621T160000
DTSTAMP:20260601T043129
CREATED:20130621T140000Z
LAST-MODIFIED:20211104T093841Z
UID:8125-1371830400-1371830400@www.math.ens.psl.eu
SUMMARY:Newton-Puiseux Theorem for convergent generalised power series
DESCRIPTION:A generalised power series (in several variables) is a series with real nonnegative exponents whose support is contained in a cartesian product of well-ordered subsets of the real line. Let A be the collection of all convergent generalised power series. I will show that\, if f(x_1\,…\,x_n\,y) is in A\, then the solutions y=g(x_1\,…\,x_n) of the equation f=0 can be expressed as terms of the language which has a symbol for every function in A and a symbol for division. The construction of the terms is rather explicit. If instead of solving just one equation one wants to solve a system of equations\, then one needs a different argument and the proof I will exhibit is a lot less constructive.
URL:https://www.math.ens.psl.eu/evenement/newton-puiseux-theorem-for-convergent-generalised-power-series/
LOCATION:IHP Salle 314
CATEGORIES:Séminaire Géométrie et théorie des modèles
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20130624T100000
DTEND;TZID=Europe/Paris:20130624T100000
DTSTAMP:20260601T043130
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:20260601T043130
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:20260601T043130
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:20260601T043130
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
END:VEVENT
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