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BEGIN:VEVENT
SUMMARY:Spectral Theory and Mathematical Physics
DTSTART;VALUE=DATE-TIME:20210201T060000Z
DTEND;VALUE=DATE-TIME:20211231T150000Z
DTSTAMP;VALUE=DATE-TIME:20211207T131900Z
UID:indico-event-111@indico.eimi.ru
DESCRIPTION:Thematic Program on\nSpectral Theory and Mathematical Physics\
n\nFebruary – December\, 2021\n\nThe program is devoted to spectral theo
ry and its applications. The spectral theory is one of the domains where t
he Saint Petersburg mathematical school is traditionally very strong\, the
names of L.D.Faddeev\, M.S.Birman and V.S.Buslaev are among the names of
the world-known leaders in the field.\n\nThe program schedule and the book
of abstracts are now available: STMP21 Schedule and STMP21 Book of Abstra
cts.\n\nThe meetings were held offline in the Leonhard Euler International
Mathematical Institute (Pesochnaya nab. 10\, St. Petersburg\, Russia). Th
e talks were recorded and the videos are posted on the event web-pages.\n\
nActivities\n\n\n\n\n\n Online Mini-Courses\n 2–26 November\, 2020\n Sem
inar in Spectral Theory and Related Topics\n February–December\, 2021\n
Seminar in Mathematical Physics\n February–December\, 2021\n Offline Min
i-Courses\n 11–18 June\, 2021\n Asymptotic Methods in Mathematical Physi
cs Conference\n dedicated to the memory of V.S.Buslaev\n 20–22 June\, 20
21\n St. Petersburg Conference in Spectral Theory\n dedicated to the memo
ry of M.Sh.Birman\n 23–26 June\, 2021\n Summer School in Spectral Theory
\n 27–30 June\, 2021\n\n\nTentative List of Long-Term Visitors\n\n\n Den
is Borisov • Institute of Mathematics UFRC RAS\, Russia\n Mid-May–Jun
e\n Sergey Dobrokhotov • Moscow Institute of Physics and Technology\n
October\n Alexander Its • IUPUI\, USA & St. Petersburg University\, R
ussia\n June\n Ilya Kachkovskiy • Michigan State University\, USA\n Au
gust–Sepetember\n Frédéric Klopp • IMJ-PRG\, Sorbonne Université\
, France\n TBC\n Marcin Moszyński • Uniwersytet Warszawski\, Poland\n
June\n Vladimir Nazaikinskii • Ishlinsky Institute for Problems in Me
chanics RAS\, Russia\n June\n Leonid Pastur • ILT Kharkiv\, Ukraine\n
September–Mid-November\n Andrey Piatnitski • UiT The Arctic universit
y of Norway\n 26/05–10/07\n Alexander Pushnitski • King's College Lo
ndon\, UK\n Fall\n Valery Smyshlyaev • University College London\, UK\n
13/07–13/08\n Alexander Sobolev • University College London\, UK\n
TBC\n Dmitri Yafaev • University of Rennes 1\, France & St. Petersburg
University\, Russia\n TBC\n Elena Zhizhina • Institute for Informatio
n Transmission Problems\, Russia\n 26/05–10/07\n\n\nOrganizing Committee
\n\n\n Alexander Fedotov • St. Petersburg University\, Russia\n Nikola
i Filonov • PDMI RAS\, Russia\n Alexander Its • IUPUI\, USA & St.
Petersburg University\, Russia\n Alexander Sobolev • University Colleg
e London\, UK\n Nikita Senik • St. Petersburg University\, Russia\n Ta
tiana Suslina • St. Petersburg University\, Russia\n Dmitri Yafaev
• University of Rennes 1\, France & St. Petersburg University\, Russia\
n\n\nInstitutions\n\n\n St. Petersburg Department of Steklov Mathematical
Institute of Russian Academy of Sciences\n Leonhard Euler International Ma
thematical Institute in Saint Petersburg\n Chebyshev Laboratory at St.Pete
rsburg State University\n\n\nThe program is supported by a grant from the
Government of the Russian Federation\, agreements 075-15-2019-1619 and 07
5-15-2019-1620\, and by a grant from Simons Foundation.\nhttps://indico.ei
mi.ru/event/111/
LOCATION:Leonhard Euler International Mathematical Institute in Saint Pete
rsburg
URL:https://indico.eimi.ru/event/111/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Geometric and Mathematical Analysis\, and Weak Geometric Structure
s
DTSTART;VALUE=DATE-TIME:20210323T060000Z
DTEND;VALUE=DATE-TIME:20211223T150000Z
DTSTAMP;VALUE=DATE-TIME:20211207T131900Z
UID:indico-event-278@indico.eimi.ru
DESCRIPTION:Thematic program "Geometric and Mathematical Analysis\, and We
ak Geometric Structures"\n\nMarch 23 – December 23\, 2021\n\nThis themat
ic program will be focused upon several areas of current mathematics resea
rch very closely interrelated between each other and having deep common ro
ots in geometric measure theory (GMT):\n\n\n Shape optimization problems a
nd geometric analysis: minimal surfaces (with respect to various notions o
f surface area/perimeter including nonlocal ones) and related problems\, c
lusters of soap bubbles\, problems with prescribed curvature\, the Steiner
problem and transportation networks\, as well as applications of shape op
timization in image analysis (e.g. Mumford-Shah problem and similar) and m
echanics (e.g. eigenvalue or compliance optimization or ground states of S
chrödinger equation).\n Weak geometric structures related to GMT\, such a
s currents\, as well as those arising in optimal mass transportation and t
he study of geometry of highly irregular metric measure spaces\, in partic
ular those without any differentiable structure\, with applications to the
analysis of PDEs with very low regularity (e.g. weak and/or or probabilis
tic notions of flows\, or “differential equations” with “purely nond
ifferentiable”\, for instance just Hölder continuous unknowns\, like th
ose in Rough paths theory) and to some modern harmonic analysis problems.\
n Purely geometric problems involving weak geometric structures\, like ext
ensions of Frobenius theorem either to irregular differential forms or dis
tributions of planes or to weaker notions of surfaces like De Rham current
s\; extensions of Chow-Rachevsky theorem to irregular vector fields or flo
ws\; applications to sub-Riemannian geometry\, geometric control theory an
d dynamical systems.\n\n\nThe idea is to explore the deep connections betw
een the above mentioned areas of research and to make them more comprehens
ible and attractive to both international and local mathematical\ncommunit
y.\n\n\nMinicourses\n\nIf you plan to attend minicourses please register h
ere.\n\n\n "Geometric flows of networks" by Matteo Novaga (Università di
Pisa) and Alessandra Pluda (Università di Pisa)\, March 23 – April
1\, 2021\n "Loops and Bubbles" by Roberta Musina (Università di Udine)\
, April 13 – April 21\, 2021\n "Gabor analysis for rational functions" b
y Yurii S. Belov (St. Petersburg State University)\, April 14 – May 26\,
2021\n "One-dimensional optimization problems" by Emanuele Paolini (Univ
ersità di Pisa)\, May 11 – May 19\, 2021\n "Mathematics and application
s of manifold learning: reconstructing hidden geometric structures in the
data" by Serguei Barannikov (Skoltech and CNRS)\, Sergey Nechaev (CNRS)\,
Vladimir Spokoiny (WIAS) and Dario Trevisan (Università di Pisa)\, d
ates TBA\n "Sobolev vector fields and their flows" by Elia Brué (IAS) an
d Dario Trevisan (Università di Pisa)\, dates TBA\n\n\n\nConferences\n\n
\n \n 30th St.Petersburg Summer Meeting in Mathematical Analysis\, July 1
– 6\, 2021\n \n\n\n\nOrganizers\n\n\n Roberta Musina\, Università di Ud
ine\n Matteo Novaga\, Università di Pisa\n Eugene Stepanov\, PDMI RAS\n D
ario Trevisan\, Università di Pisa\n\n\n\nInstitutions participating in t
he organization of the event\n\n\n Leonhard Euler International Mathematic
al Institute in Saint Petersburg\n Saint-Petersburg State University\n St.
Petersburg Department of Steklov Mathematical Institute of Russian Academ
y of Sciences\n\n\nThe program is supported by a grant from the Government
of the Russian Federation\, agreements 075-15-2019-1619 and 075-15-2019-
1620\, and by a grant from Simons Foundation.\nhttps://indico.eimi.ru/even
t/278/
LOCATION:443 726 1792 (Zoom)
URL:https://indico.eimi.ru/event/278/
END:VEVENT
BEGIN:VEVENT
SUMMARY:New Trends in Mathematical Stochastics
DTSTART;VALUE=DATE-TIME:20210815T060000Z
DTEND;VALUE=DATE-TIME:20211231T150000Z
DTSTAMP;VALUE=DATE-TIME:20211207T131900Z
UID:indico-event-102@indico.eimi.ru
DESCRIPTION:Thematic program "New Trends in Mathematical Stochastics"\n\nA
ugust 15 – December 31\, 2021 (rescheduled from 2020 due to COVID-19 pan
demic)\n\nThe general idea of this thematic program is to strengthen inte
ractions between experts and young researchers working in the areas of pro
bability theory\, stochastic processes and their applications. Visits of l
eading scientists in these areas will serve to enrich the mathematical edu
cation in St. Petersburg and to develop possibilities for future collabora
tion.\n\nLonger term visitors to the semester are welcome. Some financial
support is available for scientists in the field of probability and statis
tics who plan to make a joint research with specialists based in St. Peter
sburg. Visits for a period longer than 1 month are preferred\, but shorted
periods are also possible on negotiation.\n\n\nThe following activities w
ill be organized during the program:\n\n\n introductory online school "Ran
domness online"\, November 4 – 8\, 2020\n conference “New Trends in M
athematical Stochastics”\, August 30 – September 3\, 2021\n worksho
p "St. Petersburg Youth Conference in Probability and Mathematical Physic
s"\, December 21 – 24\, 2021\n a number of minicourses given by invite
d visitors.\n\n\n\nOrganizers:\n\n\n Ildar Ibragimov\, PDMI\n Yana Belopol
skaya\, SPbUACE\n Andrei Borodin\, PDMI\n Yury Davydov\, SPbU\n Mikhail Li
fshits\, SPbU\n Maria Platonova\, PDMI and SPbU\n Natalia Smorodina\, PDMI
and SPbU\n Yuri Yakubovich\, SPbU\n Andrei Zaitsev\, PDMI\n Dmitry Zaporo
zhets\, PDMI\n\n\n\nInstitutions participating in the organization of the
event:\n\n\n St. Petersburg Department of Steklov Mathematical Institute o
f Russian Academy of Sciences\n Leonhard Euler International Mathematical
Institute in Saint Petersburg\n Chebyshev Laboratory at St.Petersburg Stat
e University\n\n\nThe program is supported by a grant from the Government
of the Russian Federation\, agreements 075-15-2019-1619 and 075-15-2019-
1620\, and by a grant from Simons Foundation.\nhttps://indico.eimi.ru/even
t/102/
LOCATION:Leonhard Euler International Mathematical Institute in Saint Pete
rsburg
URL:https://indico.eimi.ru/event/102/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Moduli Spaces\, Combinatorics and Poisson Geometry
DTSTART;VALUE=DATE-TIME:20211115T060000Z
DTEND;VALUE=DATE-TIME:20220831T150000Z
DTSTAMP;VALUE=DATE-TIME:20211207T131900Z
UID:indico-event-107@indico.eimi.ru
DESCRIPTION:Thematic Program\n"Moduli Spaces\, Combinatorics and Poisson G
eometry"\n\nNovember 2021 – August 2022\n\nModuli spaces have many non-t
rivial connections to other areas of mathematics: combinatorics\, dynamics
\, integrable systems and Poisson geometry\, to name a few. Among most cel
ebrated results over the last 30 years one can mention several proofs of W
itten’s conjecture about intersection numbers of ψ-classes (Kontsevich\
, Mirzakhani and others)\, computation of Euler’s characteristics of mod
uli spaces (Harer-Zagier)\, development of the higher Teichmüller theory
(Fock\, Goncharov) and its links with cluster algebras and associated Pois
son structures (Fomin\, Zelevinsky).\n\nThe research problems central for
the program are:\n\n\n Establishing a relationship between meandric system
s (pairs of transversal multicurves) on higher genus surfaces and square-t
iled surfaces.\n Study of the large genus asymptotics of the numbers of me
andric systems of given topological type.\n Computation of Masur-Veech vol
umes of lower dimensional strata in the moduli space of quadratic differen
tials.\n Obtaining a relation of the distribution of geodesic multicurves
to Masur-Veech volumes.\n Establishing a relation between Joyce’s struct
ures by Bridgeland to Frobenius manifolds and topological recursion formal
ism.\n Description the complete WKB expansion of the generating function o
f monodromy symplectomorphism for second order differential equations on R
iemann surfaces with second order poles and establishing the link to topol
ogical recursion formalism.\n Application of the WKB formalism to general
isomonodromic tau-function and embed it into the topological recursion fra
mework. Generalization to higher genus using the formalism of Krichever an
d Bertola-Malgrange.\n Construction of the dilogarithm line bundle over SL
(2\, R) cluster variety associated to the canonical symplectic form over t
he moduli spaces of bordered Riemann surfaces\; description of the Bohr-So
mmerfeld symplectic leaves and their quantization.\n\n\n\nThe following ac
tivities will be organised during the program:\n\n\n school "Moduli Spaces
\, Combinatorics and Integrable Systems"\, November 15 – 26\, 2021\n con
ference "Combinatorics of Moduli Spaces\, Cluster Algebras and Topological
Recursion"\, June 13 – 17\, 2022\n conference "Geometry and Dynamics
of Moduli Spaces"\, August 1 – 5\, 2022 \n a number of minicourses gi
ven by invited visitors\n\n\n\nTentative list of minicourse lecturers incl
udes:\n\n\n \n \n Amol Aggarwal\, Harvard University\n Nicolai Reshet
ikhin\, University of California\,\n \n \n Anton Alekseev\, Universi
ty of Geneva\n Berkeley Michael Shapiro\, Michigan State University\n
\n \n Gaëtan Borot\, Max Planck Institute for Mathematics\n Leon Ta
khtajan\, Stony Brook University and EIMI\n \n \n Vladimir Fock\, Un
iversity of Strasbourg\n Richard Wentworth\, University of Maryland \n
\n \n Sergey Fomin\, University of Michigan\n Don Zagier\, Max Pl
anck Institute for Mathematics\n \n \n Martin Möller\, Goethe Univers
ity\n Anton Zorich\, Skoltech and IMJ – PRG\n \n \n Alexey Rosly\
, Skoltech\n Dimitri Zvonkine (CNRS) (to be confirmed)\n \n \n\n\n
\nOrganizers:\n\n\n Dmitry Korotkin\, Concordia University and Centre de R
echerches Mathématiques\n Peter Zograf\, PDMI RAS and St. Petersburg Univ
ersity\n\n\n\nInstitutions participating in the organization of the event:
\n\n\n St. Petersburg Department of Steklov Mathematical Institute of Russ
ian Academy of Sciences\n Leonhard Euler International Mathematical Instit
ute in Saint Petersburg\n Chebyshev Laboratory at St.Petersburg State Univ
ersity\n\n\nThe program is supported by a grant from the Government of the
Russian Federation\, agreements 075-15-2019-1619 and 075-15-2019-1620\,
and by a grant from Simons Foundation.\nhttps://indico.eimi.ru/event/107/
LOCATION: Leonhard Euler International Mathematical Institute in Saint Pet
ersburg
URL:https://indico.eimi.ru/event/107/
END:VEVENT
BEGIN:VEVENT
SUMMARY:New Trends in Topology
DTSTART;VALUE=DATE-TIME:20220201T060000Z
DTEND;VALUE=DATE-TIME:20220630T150000Z
DTSTAMP;VALUE=DATE-TIME:20211207T131900Z
UID:indico-event-104@indico.eimi.ru
DESCRIPTION:Thematic program "New Trends in Topology"\n\nFebruary 1 – J
une 30\, 2022\n\nThere were several far-reaching conceptual developments i
n topology at the turn of the century. In the late 1980’s – early 1990
’s\, a spectacular progress in the theory of knots and 3-dimensional man
ifolds was made by the Fields medalists E. Witten and V. Jones followed by
the work of N. Reshetikhin\, V. Turaev\, O. Viro and others who related t
his area of topology to the theory of quantum groups. As a result\, a new
mathematical field was born\, the topological quantum field theory.\n\nIn
parallel to the appearance of the topological quantum field theory\, there
emerged a theory of Gromov-Witten invariants\, under the influence of imp
lantation of pseudo-holomorphic curve technique into symplectic geometry b
y M. Gromov and the holomorphic curve counting into quantum 2-dimensional
gravity by E. Witten. This had led\, in particular\, to the Kontsevich-Man
in theory of quantum cohomology and a breakthrough in enumerative geometry
.\n\nThese new research areas are not only linked by the time of their app
earance and the string theory as a common root\, but also by deep relation
s between the techniques and underlying algebraic structures. The very rec
ent developments in Gromov-Witten theory brought to light direct bridges b
etween enumerative geometry of open strings and the theory of knot invaria
nts. This program is devoted to a number of the most active areas of thes
e research fields.\n\n\nThe following activities will be organized during
the program:\n\n\n introductory school “Classical and Quantum Topology i
n dimension three”\, April 11 – 15\, 2022\n introductory school “New
Methods in Enumerative Geometry”\, April 25 – 29\, 2022\n conference
“Low-Dimensional Topology”\, June 6 – 10\, 2022\n conference “On t
he Crossroad of Topology and Enumerative Geometry”\, June 13 – 17\,
2022\n a weekly research seminar.\n\n\n\nOrganizers:\n\n\n Evgeny Fominykh
\, St. Petersburg University\n Ilia Itenberg\, Sorbonne University\n Viatc
heslav Kharlamov\, Université de Strasbourg\n Vladimir Turaev\, Indiana U
niversity\n Oleg Viro\, Stony Brook University\n\n\n\nInstitutions partic
ipating in the organization of the event:\n\n\n St. Petersburg Department
of Steklov Mathematical Institute of Russian Academy of Sciences\n Leonhar
d Euler International Mathematical Institute in Saint Petersburg\n Chebysh
ev Laboratory at St.Petersburg State University\n\n\nThe program is suppor
ted by a grant from the Government of the Russian Federation\, agreements
075-15-2019-1619 and 075-15-2019-1620\, and by a grant from Simons Founda
tion.\nhttps://indico.eimi.ru/event/104/
LOCATION:Leonhard Euler International Mathematical Institute in Saint Pete
rsburg
URL:https://indico.eimi.ru/event/104/
END:VEVENT
BEGIN:VEVENT
SUMMARY:Algebraic Methods in Complexity Theory
DTSTART;VALUE=DATE-TIME:20220801T060000Z
DTEND;VALUE=DATE-TIME:20221130T150000Z
DTSTAMP;VALUE=DATE-TIME:20211207T131900Z
UID:indico-event-810@indico.eimi.ru
DESCRIPTION:Thematic program "Algebraic Methods in Complexity Theory"\n\nA
ugust 1 – November 30\, 2022\n\nThe broad goal of Computational Comple
xity is the study of computational resources required by algorithms to det
ect properties of combinatorial objects and structures. An approach that h
as proven successful in the past is\, broadly\, via connections to algebra
ic settings. Indeed\, many of the deepest and most powerful results in Com
putational Complexity rely on algebraic proof techniques. These include mo
st of the methods for obtaining circuit lower bounds\, the PCP characteriz
ation of NP\, or the Agrawal-Kayal-Saxena polynomial-time primality testin
g\, just to name some well known results. While these examples are now cla
ssical results\, algebraic methods continue to play a central role in exci
ting recent progress in computational complexity. These areas include:\n\n
\n Algebraic Complexity Theory: this subfield is rooted in algebraic quest
ions\, including algebraic circuit lower bounds\, and limits to the method
s\, algorithms for polynomial identity testing and related problems\, and
connections to randomness in computation.\n Algorithms based on algebra: t
raditionally strong fields here are algorithmic coding theory and constrai
nt satisfaction problems. There are new surprising connections with algebr
aic methods like the work of Ryan Williams on all-pair shortest path algor
ithms based on the polynomial method\, and the more recent fast exponentia
l-time algorithm for solving a system of polynomial equations based on the
Razborov-Smolensky method. To this area belongs also the study of algorit
hms on algebraic structures like groups\, matrices\, or polynomials.\n Man
y other areas of complexity theory\, like proof complexity\, communication
complexity\, quantum computation or algorithmic game theory abound with a
lgebraic techniques and methods.\n\n\nThe semester will be planned with ac
tivities around these three broad themes.\n\n\nThe following activities wi
ll be organized during the program\n\n\n Student School: Complexity Theory
Bootcamp\, August 01–05\n Workshop: Lower Bounds in Complexity Theory\
, August 08–12\, Sochi\n Workshop: Algebraic Methods in Complexity Theo
ry\, August 15–19\n various weekly research seminars\n\n\n\nOrganizers\n
\n\n V Arvind\, Institute of Mathematical Sciences\n Alexander S. Kulikov
\, St. Petersburg Department of Steklov Mathematical Institute\n Srikanth
Srinivasan\, Aarhus University\n Jacobo Toran\, University of Ulm\n\n\n\
nInstitutions participating in the organization of the event\n\n\n St. Pet
ersburg Department of Steklov Mathematical Institute of Russian Academy of
Sciences\n Leonhard Euler International Mathematical Institute in Saint P
etersburg\n Chebyshev Laboratory at St.Petersburg State University\n\n\nTh
e program is supported by a grant from the Government of the Russian Feder
ation\, agreements 075-15-2019-1619 and 075-15-2019-1620\, and by a grant
from Simons Foundation.\nhttps://indico.eimi.ru/event/810/
LOCATION:Leonhard Euler International Mathematical Institute in Saint Pete
rsburg
URL:https://indico.eimi.ru/event/810/
END:VEVENT
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