{"id":47,"date":"2020-12-16T10:14:51","date_gmt":"2020-12-16T09:14:51","guid":{"rendered":"http:\/\/dev.imj-prg.fr\/af\/?page_id=47"},"modified":"2020-12-16T10:14:51","modified_gmt":"2020-12-16T09:14:51","slug":"archives-2008-2009-du-seminaire-danalyse-fonctionnelle","status":"publish","type":"page","link":"https:\/\/www.imj-prg.fr\/af\/archives-2008-2009-du-seminaire-danalyse-fonctionnelle\/","title":{"rendered":"Archives 2008-2009 du s\u00e9minaire d’Analyse Fonctionnelle"},"content":{"rendered":"\n

Organisateurs : D. Cordero-Erausquin – O. Gu\u00e9don – B. Maurey – G.Pisier

Le Jeudi \u00e0 10h30 – salle 4C17 – 4\u00e8me \u00e9tage<\/strong>
(Institut de Math\u00e9matiques – 175 rue du Chevaleret – 75013 PARIS)<\/p>\n\n\n\n

\n\n\n\n

Ann\u00e9e 2008 – 2009<\/strong>
<\/p>\n\n\n\n

\n\n\n\n

9 octobre 2008 : <\/strong>S. Kisliakov<\/strong> (Saint Petersbourg, Russie)<\/p>\n\n\n\n

Cotype 2 for the quotient of a lattice of measurable functions by its analytic subspace.<\/p><\/blockquote>\n\n\n\n

16 octobre 2008 : <\/strong>B. Green<\/strong> (Cambridge, UK)<\/p>\n\n\n\n

A quantitative version of the idempotent theorem.<\/p><\/blockquote>\n\n\n\n

Abstract : I will describe joint work with T. Sanders in which we obtain a quantitative version of Cohen\u2019s idempotent theorem : if TeX Embedding failed !<\/em> is a an idempotent measure on some locally compact abelian group G (that is,TeX Embedding failed !<\/em>) then TeX Embedding failed !<\/em> is a finite sum of \u00ab\u00a0coset measures\u00a0\u00bb, each of which is essentially Haar measure on a coset of a closed subgroup of G. We show that the number of coset measures required may be bounded uniformly in the norm TeX Embedding failed !<\/em> ; indeed only TeX Embedding failed !<\/em> such measures are required.<\/p>\n\n\n\n

23 octobre 2008 :<\/strong> I. Gallagher<\/strong> (IMJ)<\/p>\n\n\n\n

Etude spectrale de perturbations antisym\u00e9triques de l\u2019oscillateur harmonique.<\/p><\/blockquote>\n\n\n\n

30 octobre 2008 : <\/strong>Rel\u00e2che<\/strong><\/p>\n\n\n\n

6 novembre 2008 : V. Milman<\/strong> (Tel-Aviv, Israel)<\/p>\n\n\n\n

A new duality transform and some related facts (joint work with S. Artstein)<\/p><\/blockquote>\n\n\n\n

13 novembre 2008 :<\/strong> T. Kemp<\/strong> (M.I.T., USA)<\/p>\n\n\n\n

Universal resolvent behaviour for TeX Embedding failed !<\/em>-diagonal operators<\/p><\/blockquote>\n\n\n\n

Abstract : TeX Embedding failed !<\/em>-diagonal operators are a large class of non-normal operators in a TeX Embedding failed !<\/em> factor. They play an important role in free probability theory (especially with regard to free entropy), and the are central to U. Haagerup\u2019s recent progress toward the invariant subspace conjecture. In this talk, I will discuss recent joint work with U. Haagerup and R. Speicher on the resolvent TeX Embedding failed !<\/em> of any TeX Embedding failed !<\/em>-diagonal operator TeX Embedding failed !<\/em>. It turns out the norm of the resolvent blows up near the spectral radius with a universal power law (of exponent TeX Embedding failed !<\/em>), and the constant depends only on the TeX Embedding failed !<\/em>th moment of TeX Embedding failed !<\/em>. These results are proved using both complex analytic and combinatorial techniques.<\/p>\n\n\n\n

20 novembre 2008 :<\/strong> S. Pech\u00e9<\/strong> (UJF, Grenoble)<\/p>\n\n\n\n

Le rayon spectral de grandes matrices al\u00e9atoires quand la loi des entr\u00e9es n\u2019est pas sym\u00e9trique.<\/p><\/blockquote>\n\n\n\n

27 novembre 2008 :<\/strong> V. Lafforgue<\/strong> (IMJ)<\/p>\n\n\n\n

Probl\u00e8mes de majoration de la norme de TeX Embedding failed !<\/em> sur TeX Embedding failed !<\/em> pour certains espaces TeX Embedding failed !<\/em> et certains op\u00e9rateurs TeX Embedding failed !<\/em> sur TeX Embedding failed !<\/em> donn\u00e9s par des noyaux explicites, et avec TeX Embedding failed !<\/em> un espace de Banach uniform\u00e9ment convexe arbitraire.<\/p><\/blockquote>\n\n\n\n

4 d\u00e9cembre 2008 : Congr\u00e8s Functional Inequalities and Convex Geometry<\/strong> \u00e0 l\u2019Universit\u00e9 Paris Est – Marne La Vall\u00e9e<\/p>\n\n\n\n

Ce congr\u00e8s a lieu du 1er au 4 d\u00e9cembre, consulter le programme sur http:\/\/perso-math.univ-mlv.fr\/users\/roberto.cyril\/Workshop-FGR\/programme…<\/a><\/p><\/blockquote>\n\n\n\n

11 d\u00e9cembre 2008 :<\/strong> P. Jaming<\/strong> (Orl\u00e9ans)<\/p>\n\n\n\n

Sur la transform\u00e9e de Fourier de la r\u00e9arrang\u00e9e sym\u00e9trique d\u2019une fonction.<\/p><\/blockquote>\n\n\n\n

18 d\u00e9cembre 2008 :<\/strong> J.J. Loeb<\/strong> (Angers)<\/p>\n\n\n\n

In\u00e9galit\u00e9s d\u2019hypercontractivit\u00e9 et Log-Sobolev pour les fonctions Log-sh.<\/p><\/blockquote>\n\n\n\n

8 janvier 2009 :<\/strong> C. Roberto<\/strong> (Univ. Paris-Est Marne-La-Vall\u00e9e)<\/p>\n\n\n\n

D\u00e9croissance lente de certaines mesures de Gibbs \u00e0 queues lourdes.<\/p><\/blockquote>\n\n\n\n

15 janvier 2009 :<\/strong> Rel\u00e2che<\/strong><\/p>\n\n\n\n

Rel\u00e2che.<\/p><\/blockquote>\n\n\n\n

22 janvier 2009 :<\/strong> P. Portal<\/strong> (Univ. Lille I)<\/p>\n\n\n\n

Espaces de Hardy et estimations carr\u00e9es.<\/p><\/blockquote>\n\n\n\n

29 janvier 2009 :<\/strong> P. Auscher<\/strong> (Univ. Orsay)<\/p>\n\n\n\n

Expos\u00e9 report\u00e9 au mois de mars.<\/p><\/blockquote>\n\n\n\n

5 f\u00e9vrier 2009 :<\/strong> A. Pajor<\/strong> (Univ. Paris-Est Marne-La-Vall\u00e9e)<\/p>\n\n\n\n

Sur la norme des matrices al\u00e9atoires dont les colonnes sont iid \u00e0 densit\u00e9 log-concave.<\/p><\/blockquote>\n\n\n\n

12 f\u00e9vrier 2009 :<\/strong> J. Parcet<\/strong> (Univ. Madrid, Espagne)<\/p>\n\n\n\n

New TeX Embedding failed !<\/em> inequalities for noncommutative square functions.<\/p><\/blockquote>\n\n\n\n

19 f\u00e9vrier 2009 :<\/strong> N. Ghoussoub<\/strong> (Univ. British Columbia, Canada)<\/p>\n\n\n\n

Op\u00e9rateurs monotones et syst\u00e8mes diff\u00e9rentiels auto-adjoints.<\/p><\/blockquote>\n\n\n\n

26 f\u00e9vrier 2009 :<\/strong> G. Lugosi<\/strong> (Univ. Pompeu Fabra, Espagne)<\/p>\n\n\n\n

Concentration and local tail bounds for functions of independent random variables.<\/p><\/blockquote>\n\n\n\n

5 mars 2009 :<\/strong> D. Li<\/strong> (Univ. d\u2019Artois, Lens)<\/p>\n\n\n\n

Fonctions de Carleson et de Nevanlinna des fonctions analytiques du disque dans lui-m\u00eame.<\/p><\/blockquote>\n\n\n\n

12 mars 2009 :<\/strong> G. Pisier<\/strong> (IMJ)<\/p>\n\n\n\n

Sous-espaces Hilbertiens de grande dimension de TeX Embedding failed !<\/em> : version quantique.<\/p><\/blockquote>\n\n\n\n

19 mars 2009 :<\/strong> S\u00e9minaire en gr\u00e8ve<\/strong><\/p>\n\n\n\n

26 mars 2009 \u00e0 11h :<\/strong> P. Auscher<\/strong> (Univ. Paris Sud Orsay)<\/p>\n\n\n\n

R\u00e9gularit\u00e9 maximale et espaces de Hardy.<\/p><\/blockquote>\n\n\n\n

R\u00e9sum\u00e9 : L\u2019op\u00e9rateur de r\u00e9gularit\u00e9 maximale associ\u00e9 \u00e0 un op\u00e9rateur \u00ab\u00a0concret\u2019\u2019 peut \u00eatre vu comme un int\u00e9grale singuli\u00e8re sur un espace de type parabolique. Sous des conditions raisonnables, la th\u00e9orie classique dit qu\u2019il est born\u00e9 sur TeX Embedding failed !<\/em>, TeX Embedding failed !<\/em> < TeX Embedding failed !<\/em> < TeX Embedding failed !<\/em>. Pour TeX Embedding failed !<\/em>, il faut remplacer TeX Embedding failed !<\/em> par un espace de Hardy que je pr\u00e9senterai. Je pr\u00e9senterai aussi des travaux de Bernicot et Zhao sur l\u2019utilisation d\u2019espaces de Hardy abstraits pour aborder la r\u00e9gularit\u00e9 maximale TeX Embedding failed !<\/em>.<\/p>\n\n\n\n

2 avril 2009 :<\/strong> C. Fefferman<\/strong> (Princeton Univ.)<\/p>\n\n\n\n

Extension and Interpolation of Functions.<\/p><\/blockquote>\n\n\n\n

9 avril 2009 :<\/strong> B. Fleury<\/strong> (IMJ)<\/p>\n\n\n\n

In\u00e9galit\u00e9 de Poincar\u00e9 en moyenne pour les polytopes gaussiens.<\/p><\/blockquote>\n\n\n\n

16 avril 2009 : <\/strong>Rel\u00e2che<\/strong><\/p>\n\n\n\n

23 avril 2009 : <\/strong>Rel\u00e2che<\/strong><\/p>\n\n\n\n

30 avril 2009 :<\/strong> R. DeVore<\/strong> (Texas A&M, USA)<\/p>\n\n\n\n

Capturing functions in high Euclidean dimension from point value queries.<\/p><\/blockquote>\n\n\n\n

7 mai 2009 :<\/strong> A. Koldobsky<\/strong> (Univ. Missouri, USA)<\/p>\n\n\n\n

Positive definite functions and multidimensional versions of random variables.<\/p><\/blockquote>\n\n\n\n

14 mai 2009 :<\/strong> I. Barany<\/strong> (Hungarian Academy Of Sciences, Hongrie)<\/p>\n\n\n\n

Simultaneous partitions of measures by k-fans.<\/p><\/blockquote>\n\n\n\n

21 mai 2009 : <\/strong>Rel\u00e2che<\/strong><\/p>\n\n\n\n

28 mai 2009 : <\/strong>I. Spitkovsky<\/strong> (College of William and Mary, Virginia, USA)<\/p>\n\n\n\n

On the current state of the factorization problem for almost periodic matrix functions.<\/p><\/blockquote>\n\n\n\n

4 juin 2009 :<\/strong> G. Paouris<\/strong> (Univ. Texas A&M, USA)<\/p>\n\n\n\n

Super-Gaussians directions on log-concave measures.<\/p><\/blockquote>\n\n\n\n

11 juin 2009 :<\/strong> N. Badr<\/strong> (Univ. Lyon 1, ICJ)<\/p>\n\n\n\n

Interpolation des espaces de Sobolev, Hardy-Sobolev sur les vari\u00e9t\u00e9s Riemanniennes et applications.<\/p><\/blockquote>\n\n\n\n

18 juin 2009 : <\/strong>O. Friedland<\/strong> (Univ. Tel Aviv, Israel)<\/p>\n\n\n\n

An observation on Remesz and Turan\u2019s inequalities.<\/p><\/blockquote>\n\n\n\n

25 juin 2009 :<\/strong> Journ\u00e9e \u00ab\u00a0soutenance de th\u00e8se de Bruno Fleury\u00a0\u00bb<\/p>\n\n\n\n

10h30 A. Pajor<\/strong> (Univ. Paris Est Marne La Vall\u00e9e)<\/p>\n\n\n\n

Compressed sensing et polytopes al\u00e9atoires \u00ab\u00a0neighborly\u00a0\u00bb.<\/p><\/blockquote>\n\n\n\n

2 juillet 2009 :<\/strong> Journ\u00e9e \u00ab\u00a0soutenance d\u2019HDR de Valentin Ferenczi\u00a0\u00bb<\/p>\n\n\n\n

10h R. Haydon<\/strong> (Univ. Oxford)<\/p>\n\n\n\n

Another Banach space with very few operators.<\/p><\/blockquote>\n\n\n\n

11h C. Le Merdy<\/strong> (Univ. Franche Comt\u00e9)<\/p>\n\n\n\n

Repr\u00e9sentations R-born\u00e9es des groupes moyennables.<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

Organisateurs : D. Cordero-Erausquin – O. Gu\u00e9don – B. Maurey – G.Pisier Le Jeudi \u00e0 10h30 – salle 4C17 – 4\u00e8me \u00e9tage(Institut de Math\u00e9matiques – 175 rue du Chevaleret – 75013 PARIS) Ann\u00e9e 2008 – 2009 9 octobre 2008 : S. Kisliakov (Saint Petersbourg, Russie) Cotype 2 for the quotient of a lattice of measurable functions by […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-47","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/pages\/47","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/comments?post=47"}],"version-history":[{"count":1,"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/pages\/47\/revisions"}],"predecessor-version":[{"id":48,"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/pages\/47\/revisions\/48"}],"wp:attachment":[{"href":"https:\/\/www.imj-prg.fr\/af\/wp-json\/wp\/v2\/media?parent=47"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}