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X-WR-CALNAME:IHES · Lotent
X-WR-TIMEZONE:Europe/Paris
BEGIN:VTIMEZONE
TZID:Europe/Paris
X-LIC-LOCATION:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:19700329T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU
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TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:19701025T030000
RRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU
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BEGIN:VEVENT
UID:e3ed9ac30ec4@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261109T140000
DTEND;TZID=Europe/Paris:20261109T151500
SUMMARY:Representations and Harmonic Maps into Spheres
DESCRIPTION:I will discuss some recent progress on harmonic maps from surfa
 ces to spheres which are energy minimizing representatives of orthogonal r
 epresentations. What can be said about their shapes and their limit geomet
 ry as the dimension of the representations grows to infinity? This is part
 ly joint with Riccardo Caniato and Xingzhe Li.\nhttps://indico.math.cnrs.f
 r/event/17586/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17586/
END:VEVENT
BEGIN:VEVENT
UID:1366ba57232b@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261109T160000
DTEND;TZID=Europe/Paris:20261109T171500
SUMMARY:Combinations of Non-Archimedean Discrete Groups
DESCRIPTION:Chatterji and Venkataramana\, motivated by Nori's problem\, ask
 ed for a real algebraic semisimple Lie group G and a simple Lie subgroup H
  of G\, whether a Zariski-dense discrete subgroup of G\, intersecting H in
  a lattice\, is itself a lattice in G. After discussing what is known rela
 ted to this question and Nori's problem\, we will address a similar versio
 n of this question for the k-points of…\nhttps://indico.math.cnrs.fr/eve
 nt/17587/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17587/
END:VEVENT
BEGIN:VEVENT
UID:5056b383db96@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261119T143000
DTEND;TZID=Europe/Paris:20261119T160000
SUMMARY:Families of G-Curves\, Monodromy\, and Tannaka Groups
DESCRIPTION:Maximality results for the monodromy of families of algebraic v
 arieties are widely studied in algebraic geometry. In this talk\, we study
  the monodromy group of families of Galois G -coverings of curves. The act
 ion of the Galois group G on cohomology induces a decomposition of the ass
 ociated variation of Hodge structures. Under suitable assumptions on this 
 decomposition\, we discuss results on the…\nhttps://indico.math.cnrs.fr/
 event/17666/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17666/
END:VEVENT
BEGIN:VEVENT
UID:878dbfa010be@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261126T090000
DTEND;TZID=Europe/Paris:20261126T110000
SUMMARY:Combinatorics and Arithmetic for Physics
DESCRIPTION:Combinatorics and Arithmetic for Physics The meeting’s focus 
 is about questions of discrete mathematics and number theory with an empha
 sis on computability. Problems are drawn mainly from theoretical physics :
  renormalisation\, combinatorial physics\, geometry\, evolution equations 
 (commutative and noncommutative) or related to their models. Computations\
 , based on combinatorial structures…\nhttps://indico.math.cnrs.fr/event/
 17588/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17588/
END:VEVENT
BEGIN:VEVENT
UID:d5c2c9991d22@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261126T110000
DTEND;TZID=Europe/Paris:20261126T123000
SUMMARY:The Stratified Shape
DESCRIPTION:In this talk\, I will try to address the question of how to do 
 algebraic topology with stratified spaces and schemes in a meaningful way.
  I will begin by recalling and motivating some of the main historical atte
 mpts to approach this question\, both in topology and in algebraic geometr
 y\, passing through the work of Nash\, Quinn\, Siebenmann\, Edwards–Hast
 ings\, Deligne\, and\, more recently\, Lurie and…\nhttps://indico.math.c
 nrs.fr/event/17578/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17578/
END:VEVENT
BEGIN:VEVENT
UID:687f749ff7e4@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261201T093000
DTEND;TZID=Europe/Paris:20261201T160000
SUMMARY:14e séminaire ITZYKSON - Dualité markovienne : méthodes algébri
 ques et applications
DESCRIPTION:14e séminaire ITZYKSON : Dualité markovienne : méthodes alg
 ébriques et applications Le 14e séminaire Itzykson est organisé par Jea
 n-René Chazottes (CPHT)\, Guillaume Dubach (CMLS)\, Ruben Minasian (IPhT)
  et Julio Parra-Martinez (IHES) . Depuis bientôt une quinzaine d’année
 s l’axe math-physique de la FMJH organise un séminaire Itzykson tous le
 s ans à l’IHES. Il s’agit d’une journée consacrée à un…\nhttps
 ://indico.math.cnrs.fr/event/17599/
LOCATION:Le Bois-Marie
URL:https://indico.math.cnrs.fr/event/17599/
END:VEVENT
BEGIN:VEVENT
UID:d6cc6b6478a2@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261202T140000
DTEND;TZID=Europe/Paris:20261202T160000
SUMMARY:Two Applications of the Arithmetic Margulis Lemma
DESCRIPTION:This course has two parts. In the first we will define a genera
 l notion of integer point in a higher Teichmüller space and two invariant
 s thereof\, the arithmetic dimension and the arithmetic height. The aim is
  to show finiteness\, modulo the mapping class group action\, of the numbe
 r of integer points for which both invariants are bounded. In the second p
 art we will give the main steps leading to…\nhttps://indico.math.cnrs.fr
 /event/17631/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17631/
END:VEVENT
BEGIN:VEVENT
UID:e1e5d72b58e2@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261204T140000
DTEND;TZID=Europe/Paris:20261204T160000
SUMMARY:Two Applications of the Arithmetic Margulis Lemma
DESCRIPTION:This course has two parts. In the first we will define a genera
 l notion of integer point in a higher Teichmüller space and two invariant
 s thereof\, the arithmetic dimension and the arithmetic height. The aim is
  to show finiteness\, modulo the mapping class group action\, of the numbe
 r of integer points for which both invariants are bounded. In the second p
 art we will give the main steps leading to…\nhttps://indico.math.cnrs.fr
 /event/17632/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17632/
END:VEVENT
BEGIN:VEVENT
UID:5355402a7318@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261207T090000
DTEND;TZID=Europe/Paris:20261207T190000
SUMMARY:XMath Physics Day
DESCRIPTION:XMath Physics Day is a one-day workshop bringing together early
 -career and established researchers in mathematical physics for an end-of-
 year gathering at the Laboratoire de Mathématiques d'Orsay (LMO). The pro
 gramme features talks on a broad range of topics\, including resurgence\, 
 topological strings\, and scattering amplitudes\, with ample time for disc
 ussion. The invited speakers are: Boris…\nhttps://indico.math.cnrs.fr/ev
 ent/17422/
LOCATION:Laboratoire de Mathématiques d'Orsay
URL:https://indico.math.cnrs.fr/event/17422/
END:VEVENT
BEGIN:VEVENT
UID:970335f46717@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261208T140000
DTEND;TZID=Europe/Paris:20261208T160000
SUMMARY:Two Applications of the Arithmetic Margulis Lemma
DESCRIPTION:This course has two parts. In the first we will define a genera
 l notion of integer point in a higher Teichmüller space and two invariant
 s thereof\, the arithmetic dimension and the arithmetic height. The aim is
  to show finiteness\, modulo the mapping class group action\, of the numbe
 r of integer points for which both invariants are bounded. In the second p
 art we will give the main steps leading to…\nhttps://indico.math.cnrs.fr
 /event/17633/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17633/
END:VEVENT
BEGIN:VEVENT
UID:81d34b604e72@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261210T140000
DTEND;TZID=Europe/Paris:20261210T160000
SUMMARY:Two Applications of the Arithmetic Margulis Lemma
DESCRIPTION:This course has two parts. In the first we will define a genera
 l notion of integer point in a higher Teichmüller space and two invariant
 s thereof\, the arithmetic dimension and the arithmetic height. The aim is
  to show finiteness\, modulo the mapping class group action\, of the numbe
 r of integer points for which both invariants are bounded. In the second p
 art we will give the main steps leading to…\nhttps://indico.math.cnrs.fr
 /event/17634/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17634/
END:VEVENT
BEGIN:VEVENT
UID:bd1701d69489@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20261217T110000
DTEND;TZID=Europe/Paris:20261217T123000
SUMMARY:Algebraic Theory of Indefinite Theta Functions
DESCRIPTION:Séminaire de géométrie arithmétique Jacobi's theta function
  $\\Theta(q) := 1 + 2q + 2q^4 + 2q^9 + \\cdots $\, and more generally the 
 theta functions associated to positive-definite quadratic forms\, have the
  property that they are modular forms of half-integral weight. The usual p
 roof of this fact is completely analytic in nature\, using the Poisson sum
 mation formula. However\, $\\Theta$ is also…\nhttps://indico.math.cnrs.f
 r/event/17585/
LOCATION:IHES
URL:https://indico.math.cnrs.fr/event/17585/
END:VEVENT
BEGIN:VEVENT
UID:cbd8d0b9edde@paris-academique
DTSTAMP:20261109T175030Z
DTSTART;TZID=Europe/Paris:20270531T093000
DTEND;TZID=Europe/Paris:20270531T113000
SUMMARY:French-Japanese Conference on Arithmetic Geometry in Honor of Takes
 hi Saito and Takeshi Tsuji
DESCRIPTION:French-Japanese Conference on Arithmetic Geometry in Honor of T
 akeshi Saito and Takeshi Tsuji May 31 - June 4\, 2027 at IHES - Marilyn an
 d James Simons Conference Center How to get to IHES This conference\, whic
 h is part of a long-standing tradition of French-Japanese collaboration in
  arithmetic geometry\, will honor two leading figures of this partnership:
  Professor Takeshi Saito\, on the occasion…\nhttps://indico.math.cnrs.fr
 /event/15993/
LOCATION:Le Bois-Marie
URL:https://indico.math.cnrs.fr/event/15993/
END:VEVENT
END:VCALENDAR