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The Fields Institute for Research in Mathematical Sciences, Toronto
August 21 - 25, 2023

The idea of renormalization emerged in the 1960s in mathematical physics, and revolutionized the field of Statistical Mechanics, where it has become the main tool in the analysis of phase transitions and critical phenomena. In the 1970s, renormalization ideology was transferred to Dynamics due to independent discoveries of universality phenomena by Feigenbaum and Coullet & Tresser. It has since become one of the most powerful tools of understanding small scale structure of a large variety of dynamical systems. Renormalization has become particularly well (and rigorously) developed in the conformal context, in particular, in the geometric problems related to the celebrated MLC Conjecture on the local connectivity of the Mandelbrot set.

This workshop will bring together top experts in the study of renormalization in Dynamics to map out the current state of the art and the new directions in this exciting and rapidly developing field.

Confirmed Speakers

Dr. Pierre Berger, Sorbonne University
Dr. Davoud Cheraghi, Imperial College London
Dr. Dima Dudko, Stony Brook University
Dr. Gabriela Estevez, UFF
Dr. Tanya Firsova, Kansas State University
Dr. Selim Ghazouani, UCL 
Dr. Natasha Goncharuk, Texas A&M University
Dr. Igors Gorbovickis, University of Bremen 
Dr. Sasa Kocic, University of Mississippi
Dr. Mikhail Lyubich, Stony Brook University 
Dr. Marco Martens, Stony Brook University 
Dr. Liviana Palmisano, KTH 
Dr. Enrique Pujals, CUNY
Dr. Jonguk Yang, University of Zurich

Organizing Committee:  Konstantin Khanin - University of Toronto;  Michael Yampolsky - University of Toronto

Helsinki, Finland
August 14 - 18, 2023

We are excited to invite you to join the in person "Quasiworld Workshop'', held August 14th to 18th, 2023, in Helsinki, Finland.  The conference brings together the broad community
of complex dynamics, geometric group theory, analysis on metric spaces and random geometry, and focuses on the interactions between these fields. The conference dinner will also
celebrate the 60th birthday of Mario Bonk, his numerous profound research contributions in the field, and his vast service to the community.

The registration is now open:

We also have limited funds to support participation in the event, primarily for early career participants. The deadline to request such funds is April 28th 2023:

Our speakers include:
  *  Kari Astala (University of Helsinki)
  *  Zoltán Balogh (University of Bern)
  *  Walter Bergweiler (Kiel University)
  *  Chris Bishop (Stony Brook University)
  *  Marc Bourdon (University of Lille)
  *  Luca Capogna (Smith College)
  *  Alice Chang (Princeton University)
  *  Alex Eremenko (Purdue University)
  *  Peter Haïssinsky (CNRS)
  *  Ursula Hamestädt (University of Bonn)
  *  Jun Kigami (Kyoto University)
  *  Bruce Kleiner (CIMS)
  *  Pekka Koskela (University of Jyväskylä)
  *  Urs Lang (ETH)
  *  Sergiy Merenkov (CCNY)
  *  Jason Miller (University of Cambridge)
  *  Mathav Murugan (UBC)
  *  Dimitrios Ntalampekos (Stony Brook University)
  *  Kevin Pilgrim (Indiana University Bloomington)
  *  Pietro Poggi-Corradini (Kansas State University)
  *  Kai Rajala (University of Jyväskylä)
  *  Steffen Rohde (University of Washington)
  *  Nages Shanmugalingam (University of Cincinnati)
  *  Yilin Wang (IHES)

You may contact us at, if you have any questions.

The organizers
Sylvester Eriksson-Bique, Mikhail Hlushchanka, Annina Iseli, Daniel Meyer, Dimitrios Ntalampekos, Pekka Pankka, Kirsi Peltonen,
Eero Saksman


Urgench State University (Uzbekistan)
August 4-9, 2023

NSF IRES: Advanced Studies Institute in Analysis on Fractal Spaces and Dynamical Systems

The Advanced Studies Institute (ASI) with funding from the NSF will host the conference in Uzbekistan on August 4-9, 2023 to be held at Urgench State University. The ASI will engage advanced graduate students in active learning and research at the frontiers of knowledge in broader areas of Analysis and Dynamical Systems. The ASI will serve as a catalyst for future international collaborations that promote, encourage and engage students from underrepresented groups including female students. The ASI lecturers are Mario Bonk (UCLA), Sergey Merenkov (City College of New York and CUNY Graduate Center), Mikhail Lyubich (SUNY Stony Brook), Dzmitry Dudko (SUNY Stony Brook), Pekka Pankka (University of Helsinki, Finland), and Sabya Mukherjee (Tata Institute of Fundamental Research, India).

The research focus of the ASI will be on contemporary topics in Analysis on Fractal Spaces and Dynamical Systems. Contemporary mathematics has become a truly international endeavor and hence it is important that students grasp this early on and start cementing their international network of researchers. The ASI, through its lectures and research related activities, will serve as a platform to incorporate the latest developments in these areas into education and research for graduate students. We will focus on supporting advanced graduate students and active researchers from a wide variety of colleges and universities in the U.S. The cultural component includes traveling to the ancient Silk Road cities of Tashkent, Samarkand, Bukhara and Khiva to learn about the cultural and scientific heritage of Uzbekistan.

For more information contact Dr. Zair Ibragimov at or apply directly on the website link below



CIRM, 163 avenue de Luminy, Case 916
13288 Marseille cedex 9, FRANCE
July 10 - 14, 2023

The school will consist of three mini-courses, each on the topic of Renormalization and Visualization for packing, billiard an surfaces"
They will be on Geometry, Dynamics, and Number Theory.
These topics are related to those who appear in the main conference and in the workshop.




Richard Evan Schwartz, (Brown University)
Carlos Matheus, (CNRS, Centre de mathématiques Laurent Schwartz, école polytechnique)
Kate Stange, (University of Colorado)

Université Toulouse 3 Paul Sabatier, France
July 3 - 7, 2023

The goal of this conference is to bring together experts from a wide range of topics in holomorphic dynamics, ranging from from one-variable to several variables, and from iterative to continuous time dynamics.

We hope to have a lively discussion and build new connections between these areas and beyond. Accordingly, the number of talks will be slightly reduced in order to provide free time for informal discussions.

This conference follows the week-long MINT summer school “Facets of complex dynamics” geared to graduate students that takes place in Toulouse from June 26th through 30th. It features short courses by Tien-Cuong Dinh, Nuria Fagella, Thomas Gauthier, Viet-Anh Nguyen, Pascale Roesch, and Roland Roeder. We expect that several of these people will stay for the conference, thus providing some further opportunities for mathematical discussions.

The Organizing Committee: 
Francois Berteloot, Julio Rebelo, Helena Reis, and Roland Roeder

List of speakers

Marc Abboud, Taro Asuke, Eric Bedford, Aaron Brown, Arnaud Cheritat, Bertrand Deroin, Arame Diaw, Romain Dujardin, Luis Giraldo, Alexey Glutsyuk, Yan Mary He, Kyonghee Kim, Victor Kleptsyn, Mayuresh Lonhde, Lorena Lopez, Misha Lyubich, Emmanuel Paul, Johan Taflin, Shengyuan Zhao


Mathematics and Interactions in Toulouse (MINT) Toulouse, France
June 26 to June 30, 2023

Facets of Complex Dynamics

The aim of this summer school is to introduce Master and PhD students to a number of current research topics in holomorphic dynamics, ranging from one-variable to multivariable dynamics, and from iterative to continuous-time dynamics.


  • T-C Dinh & V-A Nguyen (National University of Singapore & Université de Lille) Theory of Currents and Applications in Dynamics and Foliation Theory (I) and (II)

  • N. Fagella (Universitat de Barcelona, CRM)"Transcendental dynamics and bifurcations"

  • T. Gauthier (Laboratoire de Mathématiques d'Orsay)"Unlikely intersection problems in arithmetic dynamics"

  • R. Roeder (IUPUI - Indianapolis) "Dynamics of holomorphic and birational group actions on complex surfaces"

  • P. Roesch (Institut de Mathématiques de Toulouse) "Julia set of rational maps, examples".

Each mini-course aims at providing an introduction to an active area of research in Complex dynamics while offering enough background to be accessible to Master students.

MINT Graduate School can provide some financial support to students wishing to attend the school. If you are planning to apply for MINT financial support, please register
at your earliest convenience - and before April, 27th - at the following address:


Northwestern University, Evanston, Illinois 60208
June 20—30, 2023

Two-week summer school at Northwestern University, June 20—30, 2023. The school will feature mini-courses by Alena Erchenko, Mikolaj Fraczyk, Nicholas Miller, Amir Mohammadi, Daren Wei, and Kurt Vinhage, Planned topics for mini-courses include: effective equidistribution in unipotent dynamics, Kakutani equivalence and time change rigidity for unipotent flows, superrigidity and arithmeticity, flexibility in dynamical systems, invariant and stationary random subgroups.

The first week will include some preparatory courses as well as courses for advanced undergraduates.  (Undergraduates should have at a minimum complete a semester courses in real analysis and abstract algebra.)  

Registration: interested participants should apply for participation and funding at math programs (  Please note: our primary source of funding is limited for participants who are U.S. citizens or permanent residents.  There is limited additional funding for participants who are not citizens or permanent residents. 

For more information and further updates, please check our website:

The school is funded by NSF grants DMS-2136217 and DMS-2020013 and organized by Nir Avni, Aaron Brown, Osama Khalil, Bryna Kra, and Homin Lee.  

IHES -Institut des Hautes Études Scientifiques, Bures-sur-Yvette, France
June 19-23, 2023

The goal of the workshop is to explore links between homogeneous dynamics and recent developments on infinite-covolume discrete subgroups of Lie groups, including images of Anosov representations and generalizations. There will be three minicourses and a dozen research talks. 

This workshop is organized by Martin Bridgeman (Boston College), Richard Canary (University of Michigan), Fanny Kassel (CNRS & IHES), Hee Oh (Yale University), Maria Beatrice Pozzetti (Universität Heidelberg), and Jean-François Quint (CNRS & Université de Bordeaux).

Jean-François Quint (CNRS & Université de Bordeaux) - “Dynamics on Higher-rank Lie Groups” [3h] ;Tengren Zhang (National University of Singapore) - “Anosov Representations” [3h]; Andrés Sambarino (CNRS & IMJ-PRG) & Minju Lee (University of Chicago) - “Recent Developments” [2+2h]

Research Talks:

  • Pierre-Louis Blayac (University of Michigan) 
  • Leon Carvajales (Universidad de la Republica, Montevideo) 
  • Françoise Dal’bo (Université de Rennes 1) 
  • Nguyen-Thi Dang (Université Paris-Saclay) 
  • Sam Edwards (Durham University) 
  • François Labourie (Université Côte d'Azur) 
  • Sara Maloni (University of Virginia) 
  • Giuseppe Martone (Yale University) 
  • Wenyu Pan (University of Toronto) 
  • Rafael Potrie (Universidad de la Republica, Montevideo) 
  • Pratyush Sarkar (UC San Diego) 
  • Andrew Zimmer (University of Wisconsin, Madison)  
Registration to participate in the workshop is compulsory (except for speakers and organisers). You can already complete the registration form on the dedicated web page.
IMPORTANT: please note that due to the limited number of seats (up to 110 including speakers and organisers), registration will be closed as soon as we have reached it.
If you have any queries about practical organisation or registration please contact Elisabeth Jasserand at IHES.

Universtiat de Barcelona, Spain
June 19-23, 2023

The EMS Summer school "Topics in Complex Dynamics 2023" will take place at Universitat de Barcelona in June 19-23, with the courses by
  *  Jasmin Raissy (U. Bordeaux)
     Introduction to holomorphic dynamics in several complex variables
     Study of holomorphic endomorphism of a complex manifold of dimension at least 2 both from the global and the local
     point of view
  *  Lukas Geyer (U. of Montana)
     Quasiconformal deformations and Teichmüller theory
     Quasiconformal surgery techniques, deformations, Teichmüller theory and Thurston maps
The lecture room has  limited capacity, so registration will close when the maximum is reached. More information can be
found in the school webpage

Registration is now open for the EMS summer school Topics in Complex Dynamics, TCD2023, to take place at IMUB,
Universitat de Barcelona on June 19-23, 2023.


Kyoto University, Japan
29 May - 2 June 2023

Around the Mandelbrot set:  A conference celebrating the 60th birthday of Mitsuhiro Shishikura

VENUE: RIMS (Kyoto University), Room 420 

PROGRAM: Talks on Monday to Thursday: 9:40 - 16:50; Talks on Friday:  9:00 - 15:30; Banquet:  Thursday evening (1 June 2023)   

REGISTRATION: Registration Form for both online and in-person participants

INVITED SPEAKERS (# to indicate online presentation)

Xavier Buff  (Université Paul Sabatier)

Davoud Cheraghi   (Imperial College London)

Arnaud Chéritat   (Université Paul Sabatier) #

Guizhen Cui   (Chinese Academy of Sciences)

Laura DeMarco   (Harvard University)

Dzmitry Dudko   (Stony Brook University)

John Hamal Hubbard   (Cornell University)

Hiroyuki Inou   (Kyoto University)

Yutaka Ishii   (Kyushu University)

Tomoki Kawahira   (Hitotsubashi University)

Masashi Kisaka   (Kyoto University)

Sarah Koch   (University of Michigan)

Mikhail Lyubich   (Stony Brook University)

David Marti-Pete   (University of Liverpool)

Curtis McMullen   (Harvard University)

Yûsuke Okuyama   (Kyoto Institute of Technology)

Kevin Pilgrim   (Indiana University) #

Juan Rivera-Letelier   (University of Rochester)

Pascale Roesch   (Université Paul Sabatier)

Dierk Schleicher   (Aix-Marseille Université)

Weixiao Shen   (Fudan University)

Hiroki Sumi   (Kyoto University)

Dylan Thurston   (Indiana University)

Giulio Tiozzo   (University of Toronto)

Fei Yang   (Nanjing University)


Organizing committee:  Yutaka Ishii / Weixiao Shen / Tomoki Kawahira

Local organizers: Masashi Kisaka / Hiroki Sumi / Hiroyuki Inou / Toshi Sugiyama