BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:Motivic\, Equivariant and Non-commutative Homotopy Theory
DTSTART;VALUE=DATE-TIME:20200706T110000Z
DTEND;VALUE=DATE-TIME:20200717T170000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-5160@indico.math.cnrs.fr
DESCRIPTION:\n\nWatch the videos on Youtube.\n\nJoin the discussions on di
scord.\n\n----------------------------------------- IMPORTANT INFORMATION
------------------------------------------ \n\n>> Due to the Covid-19 pand
emic\, the 2020 Summer School will be organised through zoom. Mini-course
s and talks will be recorded and downloaded on the IHES YouTube Channel as
soon as possible in the course of the school.\n\nOrganising Committee: Ar
avind Asok (University of Southern California)\, Frédéric Déglise (CNR
S Dijon)\, Grigory Garkusha (Swansea University)\, Paul Arne Østvær (Uni
versity of Oslo)\n\nScientific Committee: Eric M. Friedlander (University
of Southern California)\, Haynes R. Miller (MIT Department of Mathematic
s)\, Bertrand Toën (CNRS Toulouse)\n\nThe IHES 2020 Summer School on "Mot
ivic\, Equivariant and Non-commutative Homotopy Theory" will be held from
6 to 17 July 2020.\n\nThis school is open to everybody but intended primar
ily for young participants\, including PhD students and postdoctoral fello
ws.\n\n\nThe IHES 2020 Summer School will focus on topics in motivic and e
quivariant homotopy theory\, and non-commutative geometry.\n\nThese three
subjects are currently experiencing a phase of intense growth and developm
ent:\n\n\n long-standing central conjectures have been solved\;\n existing
theories are being perfected\;\n many new foundational developments are b
eing made on this basis.\n\n\nIt's expected that these developments will s
pur many further advances and interactions in the near future.\n\nThe lect
ure series and research talks at the IHES Summer School will focus on pres
enting the latest developments in topics related to categories of motives\
, calculational and foundational aspects of motivic and equivariant homoto
py theory\, and the generalisations of these tools and techniques in the s
etting of non-commutative geometry.\n\n\nINVITED SPEAKERS\n\nThe Summer Sc
hool will feature mini-courses by\n\n* Clark Barwick (University of Edin
burgh)\n* Teena Gerhardt (Michigan State University)\n* Daniel Isaksen
(Wayne State University)\n* Dmitry Kaledin (Steklov Mathematical Inst.
& National Research Univ. Higher School of Economics)\n* Marc Levine (Un
iversität Duisburg-Essen)\n* Ivan Panin (St. Petersburg Department of M
athematics)\n* Goncalo Tabuada (MIT/University of Warwick)\n\nas well as
research talks by\n\n* Federico Binda (University of Milan)\n* Tom Ba
chmann (MIT)\n* Mike Hill (UCLA)\n* Geoffroy Horel (University Paris 1
3)\n* Alexander Neshitov (Western University)\n* Angélica M. Osorno (
Reed College)\n* Marco Robalo (Institut de Mathématiques de Jussieu)\n*
Kirsten Wickelgren (Duke University)\n\n \n\n\nBoth the lecture series
and research talks will focus on presenting the latest developments in to
pics related to categories of motives\, calculational and foundational asp
ects of motivic and equivariant homotopy theory\, and the generalisations
of these tools and techniques in the setting of non-commutative geometry.\
n\n\nThis is an IHES Summer School organised in partnership with the Rese
arch Council of Norway\, the Fondation Mathématique Jacques Hadamard an
d the ANR\, and the support of the Société Générale and the ERC.\n\n
\n \nhttps://indico.math.cnrs.fr/event/5160/
LOCATION:Marilyn and James Simons Conference Center (IHES)
URL:https://indico.math.cnrs.fr/event/5160/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Frobenius Structure Conjecture for Log Calabi-Yau Varieties (1
/4)
DTSTART;VALUE=DATE-TIME:20200720T083000Z
DTEND;VALUE=DATE-TIME:20200720T103000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-5871@indico.math.cnrs.fr
DESCRIPTION:Speakers: Tony Yue Yu (LMO\, Université Paris-Sud)\nMini-Cour
s\n\nWe show that the naive counts of rational curves in an affine log Cal
abi-Yau variety U\, containing an open algebraic torus\, determine in a su
rprisingly simple way\, a family of log Calabi-Yau varieties\, as the spec
trum of a commutative associative algebra equipped with a multilinear form
. This is directly inspired by a very similar conjecture of Gross-Hacking-
Keel in mirror symmetry\, known as the Frobenius structure conjecture. Alt
hough the statement involves only elementary algebraic geometry\, our proo
f employs Berkovich non-archimedean analytic methods. We construct the str
ucture constants of the algebra via counting non-archimedean analytic disk
s in the analytification of U. We establish various properties of the coun
ting\, notably deformation invariance\, symmetry\, gluing formula and conv
exity. In the special case when U is a Fock-Goncharov skew-symmetric X-clu
ster variety\, we prove that our algebra generalizes\, and in particular g
ives a direct geometric construction of\, the mirror algebra of Gross-Hack
ing-Keel-Kontsevich. The comparison is proved via a canonical scattering d
iagram defined by counting infinitesimal non-archimedean analytic cylinder
s\, without using the Kontsevich-Soibelman algorithm. Several combinatoria
l conjectures of GHKK follow readily from the geometric description. This
is joint work with S. Keel\; the reference is arXiv:1908.09861. If time pe
rmits\, I will mention another application of our theory to the study of t
he moduli space of polarized Calabi-Yau pairs\, in a work in progress with
P. Hacking and S. Keel. Here is a plan for each session of the mini-cours
e:\n\n1) Motivation and ideas from mirror symmetry\, main results.\n2) Ske
letal curves: a key notion in the theory.\n3) Naive counts\, tail conditio
ns and deformation invariance.\n4) Scattering diagram\, comparison with Gr
oss-Hacking-Keel-Kontsevich\, applications to cluster algebras\, applicati
ons to moduli spaces of Calabi-Yau pairs.\n\nRegistration is compulsory. P
lease click on the link below to receive the zoom link and password to joi
n the mini-course online:\n\nhttps://us02web.zoom.us/meeting/register/tZIv
cOCorD8iG9ES5hqURXELfgJhQbXND8N1\nhttps://indico.math.cnrs.fr/event/5871/
LOCATION:Webinar (IHES)
URL:https://indico.math.cnrs.fr/event/5871/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Frobenius Structure Conjecture for Log Calabi-Yau Varieties (2
/4)
DTSTART;VALUE=DATE-TIME:20200723T083000Z
DTEND;VALUE=DATE-TIME:20200723T103000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-5872@indico.math.cnrs.fr
DESCRIPTION:Speakers: Tony Yue Yu (LMO\, Université Paris-Sud)\nMini-Cour
s\n\nWe show that the naive counts of rational curves in an affine log Cal
abi-Yau variety U\, containing an open algebraic torus\, determine in a su
rprisingly simple way\, a family of log Calabi-Yau varieties\, as the spec
trum of a commutative associative algebra equipped with a multilinear form
. This is directly inspired by a very similar conjecture of Gross-Hacking-
Keel in mirror symmetry\, known as the Frobenius structure conjecture. Alt
hough the statement involves only elementary algebraic geometry\, our proo
f employs Berkovich non-archimedean analytic methods. We construct the str
ucture constants of the algebra via counting non-archimedean analytic disk
s in the analytification of U. We establish various properties of the coun
ting\, notably deformation invariance\, symmetry\, gluing formula and conv
exity. In the special case when U is a Fock-Goncharov skew-symmetric X-clu
ster variety\, we prove that our algebra generalizes\, and in particular g
ives a direct geometric construction of\, the mirror algebra of Gross-Hack
ing-Keel-Kontsevich. The comparison is proved via a canonical scattering d
iagram defined by counting infinitesimal non-archimedean analytic cylinder
s\, without using the Kontsevich-Soibelman algorithm. Several combinatoria
l conjectures of GHKK follow readily from the geometric description. This
is joint work with S. Keel\; the reference is arXiv:1908.09861. If time pe
rmits\, I will mention another application of our theory to the study of t
he moduli space of polarized Calabi-Yau pairs\, in a work in progress with
P. Hacking and S. Keel. Here is a plan for each session of the mini-cours
e:\n\n1) Motivation and ideas from mirror symmetry\, main results.\n2) Ske
letal curves: a key notion in the theory.\n3) Naive counts\, tail conditio
ns and deformation invariance.\n4) Scattering diagram\, comparison with Gr
oss-Hacking-Keel-Kontsevich\, applications to cluster algebras\, applicati
ons to moduli spaces of Calabi-Yau pairs.\n\nRegistration is compulsory. P
lease click on the link below to receive the zoom link and password to joi
n the mini-course online:\n\nhttps://us02web.zoom.us/meeting/register/tZIv
cOCorD8iG9ES5hqURXELfgJhQbXND8N1\n\n \nhttps://indico.math.cnrs.fr/event/
5872/
LOCATION:Webinar (IHES)
URL:https://indico.math.cnrs.fr/event/5872/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Frobenius Structure Conjecture for Log Calabi-Yau Varieties (3
/4)
DTSTART;VALUE=DATE-TIME:20200727T083000Z
DTEND;VALUE=DATE-TIME:20200727T103000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-5873@indico.math.cnrs.fr
DESCRIPTION:Speakers: Tony Yue Yu (LMO\, Université Paris-Sud)\nMini-Cour
s\n\nWe show that the naive counts of rational curves in an affine log Cal
abi-Yau variety U\, containing an open algebraic torus\, determine in a su
rprisingly simple way\, a family of log Calabi-Yau varieties\, as the spec
trum of a commutative associative algebra equipped with a multilinear form
. This is directly inspired by a very similar conjecture of Gross-Hacking-
Keel in mirror symmetry\, known as the Frobenius structure conjecture. Alt
hough the statement involves only elementary algebraic geometry\, our proo
f employs Berkovich non-archimedean analytic methods. We construct the str
ucture constants of the algebra via counting non-archimedean analytic disk
s in the analytification of U. We establish various properties of the coun
ting\, notably deformation invariance\, symmetry\, gluing formula and conv
exity. In the special case when U is a Fock-Goncharov skew-symmetric X-clu
ster variety\, we prove that our algebra generalizes\, and in particular g
ives a direct geometric construction of\, the mirror algebra of Gross-Hack
ing-Keel-Kontsevich. The comparison is proved via a canonical scattering d
iagram defined by counting infinitesimal non-archimedean analytic cylinder
s\, without using the Kontsevich-Soibelman algorithm. Several combinatoria
l conjectures of GHKK follow readily from the geometric description. This
is joint work with S. Keel\; the reference is arXiv:1908.09861. If time pe
rmits\, I will mention another application of our theory to the study of t
he moduli space of polarized Calabi-Yau pairs\, in a work in progress with
P. Hacking and S. Keel. Here is a plan for each session of the mini-cours
e:\n\n1) Motivation and ideas from mirror symmetry\, main results.\n2) Ske
letal curves: a key notion in the theory.\n3) Naive counts\, tail conditio
ns and deformation invariance.\n4) Scattering diagram\, comparison with Gr
oss-Hacking-Keel-Kontsevich\, applications to cluster algebras\, applicati
ons to moduli spaces of Calabi-Yau pairs.\n\nRegistration is compulsory. P
lease click on the link below to receive the zoom link and password to joi
n the mini-course online:\n\nhttps://us02web.zoom.us/meeting/register/tZIv
cOCorD8iG9ES5hqURXELfgJhQbXND8N1\n\n \n\n \nhttps://indico.math.cnrs.fr/
event/5873/
LOCATION:Webinar (IHES)
URL:https://indico.math.cnrs.fr/event/5873/
END:VEVENT
BEGIN:VEVENT
SUMMARY:The Frobenius Structure Conjecture for Log Calabi-Yau Varieties (4
/4)
DTSTART;VALUE=DATE-TIME:20200730T083000Z
DTEND;VALUE=DATE-TIME:20200730T103000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-5874@indico.math.cnrs.fr
DESCRIPTION:Speakers: Tony Yue Yu (LMO\, Université Paris-Sud)\nMini-Cour
s\n\nWe show that the naive counts of rational curves in an affine log Cal
abi-Yau variety U\, containing an open algebraic torus\, determine in a su
rprisingly simple way\, a family of log Calabi-Yau varieties\, as the spec
trum of a commutative associative algebra equipped with a multilinear form
. This is directly inspired by a very similar conjecture of Gross-Hacking-
Keel in mirror symmetry\, known as the Frobenius structure conjecture. Alt
hough the statement involves only elementary algebraic geometry\, our proo
f employs Berkovich non-archimedean analytic methods. We construct the str
ucture constants of the algebra via counting non-archimedean analytic disk
s in the analytification of U. We establish various properties of the coun
ting\, notably deformation invariance\, symmetry\, gluing formula and conv
exity. In the special case when U is a Fock-Goncharov skew-symmetric X-clu
ster variety\, we prove that our algebra generalizes\, and in particular g
ives a direct geometric construction of\, the mirror algebra of Gross-Hack
ing-Keel-Kontsevich. The comparison is proved via a canonical scattering d
iagram defined by counting infinitesimal non-archimedean analytic cylinder
s\, without using the Kontsevich-Soibelman algorithm. Several combinatoria
l conjectures of GHKK follow readily from the geometric description. This
is joint work with S. Keel\; the reference is arXiv:1908.09861. If time pe
rmits\, I will mention another application of our theory to the study of t
he moduli space of polarized Calabi-Yau pairs\, in a work in progress with
P. Hacking and S. Keel. Here is a plan for each session of the mini-cours
e:\n\n1) Motivation and ideas from mirror symmetry\, main results.\n2) Ske
letal curves: a key notion in the theory.\n3) Naive counts\, tail conditio
ns and deformation invariance.\n4) Scattering diagram\, comparison with Gr
oss-Hacking-Keel-Kontsevich\, applications to cluster algebras\, applicati
ons to moduli spaces of Calabi-Yau pairs.\n\nRegistration is compulsory. P
lease click on the link below to receive the zoom link and password to joi
n the mini-course online:\n\nhttps://us02web.zoom.us/meeting/register/tZIv
cOCorD8iG9ES5hqURXELfgJhQbXND8N1\n\n \n\n \nhttps://indico.math.cnrs.fr/
event/5874/
LOCATION:Webinar (IHES)
URL:https://indico.math.cnrs.fr/event/5874/
END:VEVENT
BEGIN:VEVENT
SUMMARY:POSTPONED - Algebraic Structures in Perturbative Quantum Field The
ory
DTSTART;VALUE=DATE-TIME:20201116T080000Z
DTEND;VALUE=DATE-TIME:20201120T160000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-4834@indico.math.cnrs.fr
DESCRIPTION:\n\n----------------------------------------- IMPORTANT INFORM
ATION ------------------------------------------ \n\nDue to the health sit
uation related to the Coronavirus epidemic\, the conference has been postp
oned from 16 to 20 November 2020.\n\n \n\nAlgebraic Structures in Perturb
ative Quantum Field Theory\n\nA conference in honor of Dirk Kreimer's 60th
birthday\n\nPerturbative quantum field theory is essential for precision
calculations of observables measured in experiments like the LHC\, and the
refore it is crucial for our understanding of the physics of the universe.
At the same time\, it is an extremely rich source of connections to a wid
e range of active research areas in mathematics. For example\, Feynman int
egrals give rise to interesting motives and periods in algebraic geometry\
, their renormalization rests on combinatorial Hopf algebras underlying Fe
ynman graphs\, and further relations to noncommutative geometry and the mo
duli space of tropical curves and outer space have also been discovered.\n
\nThis growing program keeps expanding in both breadth and depth\, and exc
iting young researchers are entering the field. Now is an opportune time t
o bring together scientists working on all related aspects\, to review old
and new connections and to advance the state of the art. Lectures by esta
blished scientists will be accompanied by talks from young researchers\, i
ncluding a session dedicated to present and discuss open problems.\n\nClos
e collaborations between mathematicians and physicists have been absolutel
y key for this kind of research\, and many were initiated by Dirk Kreimer.
Throughout his career\, he made substantial contributions across these to
pics\, and led students and collaborators to the profound mathematical str
uctures in perturbative quantum field theory that we are aware of today. D
irk Kreimer spent a particularly productive time at the IHES\, and it is a
n honour that this workshop takes place in its inspiring and interdiscipli
nary environment.\n\n\nOrganisers: Erik PANZER (University of Oxford) & Ka
ren YEATS (University of Waterloo)\n\nInvited speakers include:\n\n\n Marc
Bellon\, LPTHE (Sorbonne Université)\n Marko Berghoff\, Humboldt-Univer
sität\n Spencer Bloch\, University of Chicago\n Johannes Blümlein\, DE
SY Zeuthen\n Michael Borinsky\, Nikhef\n David Broadhurst\, The Open Uni
versity\n Francis Brown\, University of Oxford\n Yvain Bruned\, Universit
y of Edinburgh\n Alain Connes\, IHES & Collège de France\n Kurusch Ebrah
imi-Fard\, NTNU Trondheim\n Loïc Foissy\, Université du Littoral Côte
d'Opale\n John Gracey\, University of Liverpool\n Martin Hairer\, Imper
ial College London\n Ralph Kaufmann\, Purdue University\n Thomas Krajewsk
i\, CPT Aix-Marseille\n Dominique Manchon\, CNRS & Université Clermont-
Auvergne\n Oliver Schnetz\, FAU Erlangen-Nürnberg\n Matt Szczesny\, Bos
ton University\n Walter van Suijlekom\, Radboud Universiteit Nijmegen\n K
aren Vogtmann\, University of Warwick\n\n\n \n\nOrganized with the suppo
rt of:\n\n\nhttps://indico.math.cnrs.fr/event/4834/
LOCATION:Marilyn and James Simons Conference Center (IHES)
URL:https://indico.math.cnrs.fr/event/4834/
END:VEVENT
BEGIN:VEVENT
SUMMARY:POSTPONED - 100 Years of the Ising Model
DTSTART;VALUE=DATE-TIME:20210614T070000Z
DTEND;VALUE=DATE-TIME:20210618T150000Z
DTSTAMP;VALUE=DATE-TIME:20200813T145400Z
UID:indico-event-5466@indico.math.cnrs.fr
DESCRIPTION:\n\n\nThe Ising model is one of the most classical models of s
tatistical physics and has been a testing ground for mathematicians and ph
ysicists for a century. On the occasion of its 100th anniversary\, the Ins
titut des Hautes Études Scientifiques (IHES) organises a special conferen
ce from June 14th to June 18th 2021\, with talks from various fields invol
ved in the study of the model.\n\nThis event should serve as a platform be
tween mathematicians and physicists working in the domain. \n\nThis confe
rence is organised by: Hugo Duminil-Copin (IHES)\, Slava Rychkov (IHES) an
d Béatrice de Tilière (Cérémade\, Univ. Paris-Dauphine)\n\n \n\n\n©
Clément Hongler (EPFL)\n\n \n\nList of speakers and round-table partici
pants:\n\n\n Michael AIZENMAN\, Princeton University (Speaker)\n Roland BA
UERSCHMIDT\, University of Cambridge (Speaker)\n Rodney BAXTER\, Australi
an National University (Round-table)\n Edouard BRÉZIN\, ENS Paris (Round
-table)\n John CARDY\, University of California\, Berkeley (Speaker)\n Mic
hele CASELLE\, Università di Torino (Speaker)\n Victor DOTSENKO\, LPTMC
Jussieu (Speaker)\n Daniel FISHER\, Stanford University (Speaker)\n Juerg
FRÖHLICH\, ETH Zürich (Round-table)\n Alessandro GIULIANI\, Università
di Roma 3 (Speaker)\n Geoffrey GRIMMETT\, University of Cambridge (Round-
table)\n Clément HONGLER\, EPFL (Speaker)\n Arthur JAFFE\, Harvard Univer
sity (Round-table)\n Rick KENYON\, Yale University (Speaker)\n Joel LEBOWI
TZ\, Rutgers University (Round-table)\n Elliott LIEB\, Princeton Universit
y (Round-table)\n Eyal LUBETZKY\, Courant Institute\, NYU (Speaker)\n Bar
ry MCCOY\, SUNY Stony Brook (Speaker)\n Eveliina PELTOLA\, HCM University
of Bonn (Speaker)\n David POLAND\, Yale University (Speaker)\n David SIMMO
NS-DUFFIN\, California Institute of Technology (Speaker)\n Barry SIMON\,
California Institute of Technology (Speaker)\n Stas SMIRNOV\, University
of Geneva (Speaker)\n Vincent TASSION\, ETH Zürich (Speaker)\n Fabio TON
INELLI\, Université Lyon 1 (Speaker)\n Yvan VELENIK\, Université de Gen
ève (Speaker)\n Hendrik WEBER\, University of Bath (Speaker)\n Wendelin W
ERNER\, ETH Zürich (Speaker)\n Hao WU\, Yau Mathematical Science Center (
Speaker)\n Alexander ZAMOLODCHIKOV\, SUNY Stony Brook (Speaker)\n Jean ZIN
N-JUSTIN\, CEA Saclay (Speaker)\n\nhttps://indico.math.cnrs.fr/event/5466/
LOCATION:Marilyn and James Simons Conference Center (IHES)
URL:https://indico.math.cnrs.fr/event/5466/
END:VEVENT
END:VCALENDAR