General Information

Since the 6th Workshop in 2018, we witnessed a rapid development in the field of combinatorial methods in application to geometry and mathematical physics. We are observing inter-proliferation of two main subjects traditionally presented in the workshop agenda—cluster algebras and topological recursion. It is tempting to see how these two topics can be unified within the mirror symmetry framework, how spectral curves obtained from Landau-Ginzburg potentials motivated by cluster algebras can arise within the classical and quantum topological recursion, and how it all can be interpreted in cohomological field theory framework and be applied to knot theory and knot invariants. Notable is also a modern development of cluster structures in Lie algebras, including classical and quantum algebras of monodromies of Fuchsian systems, and other fascinating topics related to clusters and topological recursion including a modern treatise of Masur-Veech volumes.

Due to the outbreak of COVID-19, this workshop was postponed for one year. The organizers are cautiously optimistic in their assumptions that due to recent encouraging news about vaccine,

Another new important development is that Workshop of 2021 will be organized jointly by Moscow and St.Petersburg institutions and will occupy TWO weeks instead of one: the first week, 24–28 May, in Steklov Mathematical Institute and Skoltech, Moscow, and the second week, 31 May –4 June, in Euler Mathematical Institute, St.Petersburg. Thanks to additional financial support the organizers will be able to cover accommodation of all participants in the both capitals of Russia, Moscow and St.Petersburg, for the whole duration of the workshop. We’ll be also able to cover travel expenses of all invited speakers and, hopefully, to all participants in early stages of their scientific career provided they have no travel grants covering their participation.

We cordially invite all confirmed participants of the postponed Workshop of 2020 to take part in ALL activities of the newly organized Workshop of 2021.
Changing the format of the workshop will obviously result in changing the general outlay of the workshop: we expect

the first, Moscow, part of the Workshop to be devoted mostly to research talks with priority given to younger participants and researchers from underrepresented groups as well as to talks presenting novel hot trends in the field.

The second, St.Petersburg, part of the Workshop will be presumably reserved for more extended presentations (maybe in form of short series) by well-established scientists aimed at an audience of PhD students and postdocs with an extended time reserved for free informal discussions [ web-site ]



  • Steklov Mathematical Institute
  • Skolkovo Institute of Science and Technology
  • Higher School of Economics
  • Interdisciplinary Scientific Center J.-V. Poncelet

St. Petersburg

  • St. Petersburg Department of Steklov Mathematical Inst.
  • Leonhard Euler International Mathematical Inst. in St. Petersburg
  • Chebyshev Laboratory at St.Petersburg State Univ.

Organizing Committee:

  • Leonid Chekhov (Steklov, Poncelet, and Michigan State Univ.)
  • Dmitry Korotkin (Concordia Univ. and Centre de Recherches Mathématiques)
  • Igor Krichever (Skoltech, HSE, and Columbia Univ.)
  • Sergei Lando (HSE, and Skoltech)
  • Sergei Nechaev (Poncelet)
  • Armen Sergeev (Steklov)
  • Peter Zograf (PDMI and St.Petersburg Univ.)

Program Committee:

  • Leonid Chekhov (Steklov, Poncelet, and Michigan State Univ.)
  • Sergei Fomin (Univ. of Michigan)
  • Sergei Lando (HSE and Skoltech)
  • Andrei Marshakov (Skoltech, HSE, ITEP, and Lebedev)
  • Marta Mazzocco (Univ. Birmingham)
  • Dmitrii Orlov (Steklov)

Registration Fee

The registration fee is 150 USD (120 Euros) for participants with non-Russian (non-FSU) affiliations (paid upon arrival by those who can cover it from their grants or institutions). This covers also the welcome party and the conference dinner.

Support & Accommodation

For all invited speakers and for a limited number of other participants, with the preference to younger researchers, the organizers will arrange free accommodation in the Professor Guesthouse of the HSE.


All nationals except for some countries of the FSU, South Korea, Israel, and most countries in Central and South America, need visas to enter Russia. Because it takes time to arrange invitation and to proceed the visa application in a Russian consulate, we strongly recommend to ask for your visa at least six weeks prior to the workshop date. We’ll provide an assistance with the visa invitation and registration when in Russia.

Travel Expenses

Based on a success of our grant applications, the organizers may be able to cover (in full or partially) international travel expenses of the invited speakers. On a case-by-case basis, we’ll hopefully be able to make contributions towards travel expenses of other participants, with a preference to younger researchers. When necessary, we organize transportation from and to Moscow airports.

Contact email of the Organizing Committee
(Leonid Chekhov)
(Sergei Lando)

mian1 skoltech1 hse1 poncelet1