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BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20211011T140000
DTEND;TZID=Europe/Paris:20211011T170000
DTSTAMP:20260611T033728
CREATED:20211011T120000Z
LAST-MODIFIED:20211104T133512Z
UID:14131-1633960800-1633971600@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00 – 14.45 François Le Maître (Université Paris Diderot -Paris VII)\, Reconstruction for Boolean measure-preserving actions of full groups and applications15.00 – 15.45 Romain Tessera (Université Paris Diderot -Paris VII)\, Coarse geometry meets measured group theory16.00 – 16.45 Pierre Fima (Université Paris Diderot -Paris VII)\, Highly transitive groups among groups acting on trees
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-17/
LOCATION:Salle W (DMA ENS)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20210330T140000
DTEND;TZID=Europe/Paris:20210330T170000
DTSTAMP:20260611T033728
CREATED:20210330T120000Z
LAST-MODIFIED:20211108T205327Z
UID:8572-1617112800-1617123600@www.math.ens.psl.eu
SUMMARY:Après-midi de marches aléatoires et des groupes moyennables
DESCRIPTION:Zoom: https://us02web.zoom.us/j/85927181837\nMot de passe: G est un Graphe de Cayley du groupe libre à 107 générateurs. Quel est le degré de ce graphe?\nTapez le numéro à trois chiffres comme un mot de passe. \n\n14.00 – 14.45 Hanna Oppelmayer\, Random walks on dense subgroups of totally disconnected locally compact groups\n15.00 – 15.45 Georgii Veprev\, Non-existence of a universal zero entropy system for non-periodic amenable group actions\n16.15 – 17.00 Paul-Henry Leemann\, De Bruijn graphs\, spider web graphs and Lamplighter groups
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-marches-aleatoires-et-des-groupes-moyennables/
LOCATION:Zoom: https://us02web.zoom.us/j/85927181837
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20210119T160000
DTEND;TZID=Europe/Paris:20210119T190000
DTSTAMP:20260611T033728
CREATED:20210119T150000Z
LAST-MODIFIED:20211104T134537Z
UID:8569-1611072000-1611082800@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:Zoom: https://us02web.zoom.us/j/84778703586Mot de passe: G est un Graphe de Cayley du groupe libre à 107 générateurs. Quel est le degré de ce graphe? Tapez le numéro à trois chiffres comme un mot de passe.16.00-16.45 Igor Pak\, Cogrowth sequences in groups and graphs17.00-17.45 Behrang Forghani\, Boundary Preserving Transformations18.15-19.00 Mehrdad Kalantar\, On weak containment properties of quasi-regular representations of stabilizer subgroups of boundary actions
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-12/
LOCATION:Zoom: https://us02web.zoom.us/j/84778703586
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20201208T150000
DTEND;TZID=Europe/Paris:20201208T180000
DTSTAMP:20260611T033728
CREATED:20201208T140000Z
LAST-MODIFIED:20211104T133753Z
UID:8565-1607439600-1607450400@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:Zoom: https://us02web.zoom.us/j/82502264227The password is answer to the following question: What is the degree of the standard Cayely graph on 107 generators?15.00-15.45 Robert Young (NYY Courant and IAS Princeton)\, Holder maps to the Heisenberg group16.00-16.45 Matei Coiculescu (Brown University)\, The Spheres of Sol17.15-18.00 Richard Schwartz (Brown University and IAS Princeton)\, The areas of metric spheres in Sol
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-11/
LOCATION:Zoom: https://us02web.zoom.us/j/82502264227
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20201124T140000
DTEND;TZID=Europe/Paris:20201124T170000
DTSTAMP:20260611T033728
CREATED:20201124T130000Z
LAST-MODIFIED:20211104T134624Z
UID:8561-1606226400-1606237200@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:https://us02web.zoom.us/j/83180342864The password is answer to the following question: What is the degree of the standard Cayely graph on 107 generators?14.00-14.45 Alessandro Sisto (Heriot-Watt)\, Cubulation of hulls and bicombings15.00-15.45 Thomas Haettel (Montpellier)\, The coarse Helly property\, hierarchical hyperbolicity and semihyperbolicity16.15-17.00 Mark Hagen (Bristol)\, Wallspaces\, the Behrstock inequality\, and l_1 metrics onasymptotic cones
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-10/
LOCATION:Zoom: https://us02web.zoom.us/j/83180342864
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20201027T090000
DTEND;TZID=Europe/Paris:20201027T120000
DTSTAMP:20260611T033728
CREATED:20201027T080000Z
LAST-MODIFIED:20211104T134742Z
UID:8560-1603789200-1603800000@www.math.ens.psl.eu
SUMMARY:Une matinée de théorie de groupes
DESCRIPTION:https://us02web.zoom.us/j/86850693514The password is answer to the following question: What is the degree of the standard Cayely graph on 107 generators?09.00-09.45 Koji Fujiwara (Kyoto)\, The rates of growth in a hyperbolic group10.00-10.45 Macarena Arenas (Cambridge)\, Linear isoperimetric functions for surfaces in hyperbolic groups11.15-12.00 Indira Chatterji (Nice)\, Tangent bundles on hyperbolic spaces and proper actions on Lp spaces
URL:https://www.math.ens.psl.eu/evenement/une-matinee-de-theorie-de-groupes/
LOCATION:Zoom: https://us02web.zoom.us/j/86850693514
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20200218T150000
DTEND;TZID=Europe/Paris:20200218T170000
DTSTAMP:20260611T033728
CREATED:20200218T140000Z
LAST-MODIFIED:20211104T134933Z
UID:8542-1582038000-1582045200@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 David Hume (Oxford)\, Three dichotomies for connected unimodular Lie groups15.00-15.45 Nikolay Bogachev (Skoltech & MIPT)\, Arithmetic hyperbolic reflection groups16.15-17.00 Daniel Woodhouse (Oxford)\, Action rigidity of free products of hyperbolic manifold groups
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-9/
LOCATION:Salle W (DMA ENS)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20200121T150000
DTEND;TZID=Europe/Paris:20200121T170000
DTSTAMP:20260611T033728
CREATED:20200121T140000Z
LAST-MODIFIED:20211104T135010Z
UID:8539-1579618800-1579626000@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 Francois Dahmani (Grenoble)\, Relative hyperbolicity of free-by-cyclic groups\, and conjugacy between automorphisms of free groups15.00-15.45 Tatiana Smirnova-Nagnibeda (Geneva)\, Various types of spectra and spectral measures on Schreier and Cayley graphs16.15-17.00 Urs Lang (ETH Zurich)\, Characterizations and asymptotic geometry of rank-n-hyperbolic spaces
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-8/
LOCATION:Salle W (DMA ENS)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191217T150000
DTEND;TZID=Europe/Paris:20191217T170000
DTSTAMP:20260611T033728
CREATED:20191217T140000Z
LAST-MODIFIED:20211104T135037Z
UID:8535-1576594800-1576602000@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:15.00-15.45 Ashot Minasyan (Southampton)\, CAT(0) groups with exotic properties16.15-17.00 Assaf Naor (Princeton)\, Vertical-versus-horizontal isoperimetry*NOTE* Urs Lang’s talk has been moved to January 21
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-7/
LOCATION:Salle W (DMA ENS)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191112T140000
DTEND;TZID=Europe/Paris:20191112T170000
DTSTAMP:20260611T033728
CREATED:20191112T130000Z
LAST-MODIFIED:20211104T133906Z
UID:8533-1573567200-1573578000@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 Peter Haissinsky (Université d’Aix-Marseille)\, Quasi-isometric rigidity of 3-manifold groups.15.00-15.45 Nima Hoda (ENS Paris)\, Shortcut graphs and groups.16.15-17.00 Elia Fioravanti (Oxford)\, Cross ratios on cube complexesand marked length-spectrum rigidity.
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-6/
LOCATION:Salle W (DMA ENS)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20191029T140000
DTEND;TZID=Europe/Paris:20191029T170000
DTSTAMP:20260611T033728
CREATED:20191029T130000Z
LAST-MODIFIED:20211104T135125Z
UID:8528-1572357600-1572368400@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 Christophe Pittet (Genève)\, The exact convergence rate in the ergodic theorem of Lubotzky Phillips Sarnak.15.00-15.45 Thiebout Delabie (Orsay)\, High dimensional cuts and coarse embedding.16.15-17.00 Alina Vdovina (Newcastle)\, Ramanujan cubical complexes as higher-dimensional expanders.
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-5/
LOCATION:Salle W (DMA ENS)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190618T140000
DTEND;TZID=Europe/Paris:20190618T170000
DTSTAMP:20260611T033728
CREATED:20190618T120000Z
LAST-MODIFIED:20211104T135150Z
UID:8513-1560866400-1560877200@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 Katrin Tent (Munster)\, Burnside groups of relatively small odd exponent15.00-15.45 Arindam Biswas (Vienne)\, On minimal complements in groups16.15-16.45 Laurent Bartholdi (Institut d’études avancées\, ENS Lyon)\, Dimension series and homotopy groups of spheres
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-4/
LOCATION:IHP salle 1
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190514T140000
DTEND;TZID=Europe/Paris:20190514T170000
DTSTAMP:20260611T033728
CREATED:20190514T120000Z
LAST-MODIFIED:20211104T135214Z
UID:8510-1557842400-1557853200@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 Stefan Witzel (Ecole Polytehchnique)15.00-15.45 Katie Vokes (IHES)15.45-16.15 coffee break16.15-16.45 Adrien Le Boudec (ENS Lyon)Stefan Witzel\, Arithmetic approximate groups and their finiteness propertiesI will talk about approximate groups\, a geometric generalization of groups. Approximate groups were discovered independently in various contexts and I will describe how they arise very naturally in the context of arithmetic groups. I will then explain how to extend topological finiteness properties of groups to approximate groups. This allows to make a connection betweenarithmetic groups in positive characteristic and arithmetic approximate groups in characteristic zero. The talk is based on joint work with Tobias Hartnick.Katie Vokes\, Hierarchical hyperbolicity of graphs associated to surfacesIn a paper of 2000\, Masur and Minsky studied the geometry of mapping class groups of surfaces using projections to certain Gromov hyperbolic graphs (the curve graphs) associated to subsurfaces. This inspired the definition by Behrstock\, Hagen and Sisto of hierarchically hyperbolic spaces\, which are equipped with similar projection maps\, satisfying conditions which guarantee a structure analogous to that of the mapping class group. I will give some background on these concepts and present a result demonstrating that a large family of graphs associated to surfaces are hierarchically hyperbolic spaces.Adrien Le Boudec\, Simple groups having a wreath product as a geometric modelThe goal of the talk will be to describe groups that are finitelygenerated\, simple\, and that act properly and cocompactly on thenatural Cayley graph of the wreath product A wr F\, where A is afinite group and F a non-abelian free group.
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-3/
LOCATION:Salle W (DMA)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190416T140000
DTEND;TZID=Europe/Paris:20190416T170000
DTSTAMP:20260611T033728
CREATED:20190416T120000Z
LAST-MODIFIED:20211119T102741Z
UID:8506-1555423200-1555434000@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie des groupes
DESCRIPTION:14.00 -14.45 Cornelia Drutu (Oxford)\, Fixed point properties and conformal dimension of the boundary for hyperbolic groups\n15.00- 15-45 Mathieu Dussaule (Nantes)\, The Guivarch inequality in relatively hyperbolic groups\n15.45-16.15 coffee break\,\n16.15-17.00 Anthony Genevois (Orsay)\, Cubical geometry of braided Thompson’s group
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-des-groupes-6/
LOCATION:Salle W (Toits du DMA)
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190312T140000
DTEND;TZID=Europe/Paris:20190312T170000
DTSTAMP:20260611T033728
CREATED:20190312T130000Z
LAST-MODIFIED:20211104T112225Z
UID:8498-1552399200-1552410000@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie des groupes
DESCRIPTION:14.00-14.45  Emmanuel Militon (Nice)\, Groups of diffeomorphisms of a Cantor set15.00-15.45  Simon André (Rennes)\, Hyperbolicity is preserved under elementary equivalence15.45-16.15 coffee break(CANCELED) 16.15-17.00 Nikolay Nikolov (Oxford)\, On conjugacy classes in compact groups
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-des-groupes-4/
LOCATION:Salle W
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190212T140000
DTEND;TZID=Europe/Paris:20190212T170000
DTSTAMP:20260611T033728
CREATED:20190212T130000Z
LAST-MODIFIED:20211104T112225Z
UID:8499-1549980000-1549990800@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie des groupes
DESCRIPTION:14.00-14.45 Joshua Frisch (Caltech) Proximal actions\, Strong amenability\, and Infinite conjugacy class groups15.00-15.45 Andy Zucker (Paris VII) Bernoulli Disjointness15.45-16.15 coffee break16.15-17.00 Christophe Garban (Université Lyon 1) Inverted orbits of exclusion processes\, diffuse-extensive-amenability and (non-?)amenability of the interval exchanges
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-des-groupes-5/
LOCATION:Salle W
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20190122T140000
DTEND;TZID=Europe/Paris:20190122T170000
DTSTAMP:20260611T033728
CREATED:20190122T130000Z
LAST-MODIFIED:20211104T111601Z
UID:8486-1548165600-1548176400@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie des groupes
DESCRIPTION:Tuesday\, 22 January14.00-14.45 Bertrand Rémy (Ecole Polytechnique)15.00-15.45 Tom Hutchcroft (Cambridge)15.45-16.15 coffee break16.15-17.00 Pavel Zalesski (University of Brasilia)Bertrand Remy\, Quasi-isometric invariance of continuous group Lp-cohomology\, and first applications to vanishings (joint with Marc Bourdon)We show that the continuous L^p-cohomology of locally compact second countable groups is a quasi-isometric invariant. As an application\, we prove partial results supporting a positive answer to a question asked by M. Gromov\, suggesting a classical behaviour of continuous L^p-cohomology of simple real Lie groups. In addition to quasi-isometric invariance\, the ingredients are a spectral sequence argument and Pansu?RTMs vanishing results for real hyperbolic spaces. In the best adapted cases of simple Lie groups\, we obtain nearly half of the relevant vanishings. Tom Hutchcroft\, Kazhdan groups have cost 1I will sketch a proof that Kazhdan groups have cost 1\, answering a question of Gaboriau. No knowledge of Kazhdan groups or of cost will be assumed. Joint work with Gabor Pete.Pavel Zalesski\, The profinite completion of 3-manifold groups.Abstract. We shall present structural results of the profinite completion widehat G of a 3-manifold group G and its interrelation with the structure of G. We shall address the question to what extent the profinite completion of the fundamental group $pi_1M of a 3-manifold determines the manifold M and discuss residual properties of pi_1 M.
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-des-groupes-3/
LOCATION:Salle W ENS
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20181211T140000
DTEND;TZID=Europe/Paris:20181211T170000
DTSTAMP:20260611T033728
CREATED:20181211T130000Z
LAST-MODIFIED:20211104T111359Z
UID:8479-1544536800-1544547600@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:14.00-14.45 Dawid Kielak (Bielefeld)Fibring of residually finite rationally-solvable groups14.45 -15.15 coffee break15.15-16.00 Damian Osajda (Wroclaw and McGill\, Montreal)A combination theorem for combinatorially non-positively curved complxes of hyperbolic groups
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes-2/
LOCATION:Salle W
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20181113T140000
DTEND;TZID=Europe/Paris:20181113T140000
DTSTAMP:20260611T033728
CREATED:20181113T130000Z
LAST-MODIFIED:20211104T111158Z
UID:8474-1542117600-1542117600@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie de groupes
DESCRIPTION:Tuesday\, 13 November14.00-14.45 Miklos Abert (Renyi Institute Budapest)15.00-15.45 Arman Darbinyan (ENS Paris)15.45-15.15 coffee break16.15-17.00 Rachel Skipper (Göttingen and ENS Lyon)
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-de-groupes/
LOCATION:Salle W
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20181009T140000
DTEND;TZID=Europe/Paris:20181009T170000
DTSTAMP:20260611T033728
CREATED:20181009T120000Z
LAST-MODIFIED:20211119T102754Z
UID:8468-1539093600-1539104400@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie des groupes
DESCRIPTION:14.00-14.45 Martin Bridson (Oxford)\, Profinite rigidity and hyperbolic 3-orbifolds15.00-15.45 Arnaud Hilion (Marseille): Boundary of cyclic hyperbolic extensions of free groups15.45-16.15 pause café16.15-17.00 Damien Gaboriau (ENS Lyon)\, On non-vanishing of the cohomology of Aut(Fn) and Out(Fn) in top dimensions
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-des-groupes-2/
LOCATION:ENS 45 rue    d’Ulm salle W  toits du DMA
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20180626T140000
DTEND;TZID=Europe/Paris:20180626T180000
DTSTAMP:20260611T033728
CREATED:20180626T120000Z
LAST-MODIFIED:20211104T110755Z
UID:8464-1530021600-1530036000@www.math.ens.psl.eu
SUMMARY:Après-midi de théorie des groupes
DESCRIPTION:14.00-14.45 Pierre Pansu (Orsay) L^1 cohomology of Euclidean spaces andHeisenberg groups15.00-15.45  Tianyi Zhang  (UC San Diego) Growth of torsion Grigorchukgroups15.45-16.15 pause café16.15-17.00  Sergei Ivanov (St-Petersbourg)\, Transfinite invariants ofgroups and spaces17.15-18.00 Kate Juschenko (Northwestern University)\, On Liouvilleproperty of action of discrete groups
URL:https://www.math.ens.psl.eu/evenement/apres-midi-de-theorie-des-groupes/
LOCATION:Institut Henri Poincaré (11 rue Pierre et Marie Curie 75005 Paris)  salle 01
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20180515T140000
DTEND;TZID=Europe/Paris:20180515T170000
DTSTAMP:20260611T033728
CREATED:20180515T120000Z
LAST-MODIFIED:20211104T110741Z
UID:8462-1526392800-1526403600@www.math.ens.psl.eu
SUMMARY:Mardi après-midi de théorie des groupes
DESCRIPTION:14.00-14.45 Thomas Schick (Göttingen): Approximation of L2-Betti numbers and the algebraic Eigenvalue property (after Jaikin-Zaipirain)15.00-15.45 Jacques Darné (Lille): Variations autour du problème d’Andreadakis 15.45-16.15 pause café16.15-17.00 Volodymyr Nekrashevych (Texas A&M): Amenability of iterated monodromy groups
URL:https://www.math.ens.psl.eu/evenement/mardi-apres-midi-de-theorie-des-groupes/
LOCATION:Salle W toits du DMA
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20180417T140000
DTEND;TZID=Europe/Paris:20180417T170000
DTSTAMP:20260611T033728
CREATED:20180417T120000Z
LAST-MODIFIED:20211104T110540Z
UID:8456-1523973600-1523984400@www.math.ens.psl.eu
SUMMARY:3 exposés de dynamique et théorie des groupes
DESCRIPTION:14.00-14.45 Omer Tamuz (Caltech): The Poisson boundary and the infinite conjugacy class property15.00-15.45 Yair Hartman (Northwestern University): Stationary C*-Dynamical Systems15.45-16.15 pause café16.15-17.00 Said Sidki (University of Brasilia): Self-similarity and finite presentability
URL:https://www.math.ens.psl.eu/evenement/3-exposes-de-dynamique-et-theorie-des-groupes-2/
LOCATION:Salle W toits du DMA ENS
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20180313T000000
DTEND;TZID=Europe/Paris:20180313T000000
DTSTAMP:20260611T033728
CREATED:20180312T230000Z
LAST-MODIFIED:20211104T110338Z
UID:8450-1520899200-1520899200@www.math.ens.psl.eu
SUMMARY:3 exposés de dynamique et théorie des groupes
DESCRIPTION:14.00-14.45 Julien Cassaigne (IML\, Marseille): A family of infinite words with complexity 2n+1 associated with a bidimensional continued fraction algorithm15.00-15.45 Milton Minervino (LaBRI\, Bordeaux): Fractals de Rauzy et substitutions d’arbre15.45-16.15 coffee break16.45-17.00 Nathalie Aubrun (ENS\, Lyon): Tilings problems on substitution orbits
URL:https://www.math.ens.psl.eu/evenement/3-exposes-de-dynamique-et-theorie-des-groupes/
LOCATION:Salle W toits du DMA
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20180220T140000
DTEND;TZID=Europe/Paris:20180220T170000
DTSTAMP:20260611T033728
CREATED:20180220T130000Z
LAST-MODIFIED:20211104T110338Z
UID:8449-1519135200-1519146000@www.math.ens.psl.eu
SUMMARY:Un après-midi de marches aléatoires sur les groupes
DESCRIPTION:14.00-14.45 François Ledrappier  (Paris VI)\,  Differentiability of the linear drift in negative curvature15.00-15.45 Johannes Cuno (ENS)\, Random walks on Baumslag-Solitar groups15.45-16.15 pause café16.15-17.00 Ariel Yadin (Ben Gurion University)\, Intersectional IRS and Furstenberg entropy realization
URL:https://www.math.ens.psl.eu/evenement/un-apres-midi-de-marches-aleatoires-sur-les-groupes/
LOCATION:Toits du DMA salle W
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20180116T140000
DTEND;TZID=Europe/Paris:20180116T170000
DTSTAMP:20260611T033728
CREATED:20180116T130000Z
LAST-MODIFIED:20211025T103312Z
UID:8442-1516111200-1516122000@www.math.ens.psl.eu
SUMMARY:Trois exposés dans un après-midi de théorie des groupes
DESCRIPTION:https://sites.google.com/site/annaerschler/programtalks
URL:https://www.math.ens.psl.eu/evenement/trois-exposes-dans-un-apres-midi-de-theorie-des-groupes-3/
LOCATION:14:00-17:00 Salle W
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20171205T140000
DTEND;TZID=Europe/Paris:20171205T170000
DTSTAMP:20260611T033728
CREATED:20171205T130000Z
LAST-MODIFIED:20211104T105553Z
UID:8431-1512482400-1512493200@www.math.ens.psl.eu
SUMMARY:un après-midi sur la theorie des groupes
DESCRIPTION:14.00-14.45  Markus Steenbock (ENS) Product Set Growth in Hyperbolic Geometry(Salle W)15.00-15.45 Dominik Francoeur (ENS) On maximal subgroups in branch groups. (Salle W)15.45-16.15 coffee break16.45-17.00 Feyishayo Olukoya (St-Andrews) The growth rates of groups generated by reset automata (Salle Cartan)Des détails se trouvent à https://sites.google.com/site/annaerschler/programtalks.
URL:https://www.math.ens.psl.eu/evenement/un-apres-midi-sur-la-theorie-des-groupes/
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20171114T140000
DTEND;TZID=Europe/Paris:20171114T170000
DTSTAMP:20260611T033728
CREATED:20171114T130000Z
LAST-MODIFIED:20211104T105551Z
UID:8429-1510668000-1510678800@www.math.ens.psl.eu
SUMMARY:Trois exposés de théorie des groupes : Mikhailov / Levitt / Mitrofanov
DESCRIPTION:14.00-14.45 Roman Mikhailov (St.Petersburg): Around nilpotent completion.15.00-15.45 Gilbert Levitt (Caen): On elementary equivalence of hyperbolic groups.15.45-16.15 coffee break16.15-17.00  Ivan Mitrofanov (ENS): Algorithmic problems for self-similar groups.
URL:https://www.math.ens.psl.eu/evenement/trois-exposes-de-theorie-des-groupes-mikhailov-levitt-mitrofanov/
LOCATION:Salle W toits du DMA Ecole Normale Superieure 45 rue d’Ulm Paris 5e
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20171017T000000
DTEND;TZID=Europe/Paris:20171017T000000
DTSTAMP:20260611T033728
CREATED:20171016T220000Z
LAST-MODIFIED:20211104T125954Z
UID:8428-1508198400-1508198400@www.math.ens.psl.eu
SUMMARY:Trois exposés dans un après-midi de théorie des groupes
DESCRIPTION:
URL:https://www.math.ens.psl.eu/evenement/trois-exposes-dans-un-apres-midi-de-theorie-des-groupes-2/
LOCATION:Salle W Salle H.Cartan
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20170523T140000
DTEND;TZID=Europe/Paris:20170523T170000
DTSTAMP:20260611T033728
CREATED:20170523T120000Z
LAST-MODIFIED:20211104T104311Z
UID:8389-1495548000-1495558800@www.math.ens.psl.eu
SUMMARY:Trois exposés dans un après-midi de théorie des groupes
DESCRIPTION:
URL:https://www.math.ens.psl.eu/evenement/trois-exposes-dans-un-apres-midi-de-theorie-des-groupes/
LOCATION:Salle W DMA ENS
CATEGORIES:Séminaire de théorie des groupes à l’ENS
END:VEVENT
END:VCALENDAR