International Laboratory of Cluster Geometry of the Faculty of Mathematics of the Higher School of Economics

Invited researcher Shapiro Michael

Time span of the project

2021-2023

Name of the project: Cluster algebras and moduli spaces of flat and holomorphic connections

Strategy for Scientific and Technological Development Priority Level: а

The main objective of this project is the expansion of methods applicable for the computation of the canonical characteristic classes in moduli spaces of complex curves over spaces of flat connections. The modern approach to the computation of integrals of canonical classes is based on topological recursion that allows to recurrently express integrals of characteristic classes. The initial state of the proposed project is the formation of a cluster theory for moduli spaces of curves and the study of their applications in the computation of integrals of canonical classes.

Projected research results:

To study the degeneracy of the so-called «‎shear» coordinates and Weil-Petersson forms on the boundary strata of the Teichmüller space;
To generalise degeneration formulas for other cluster manifolds, for example, for double Bruhat cells;
To generalise topological recursion methods for boundary strata of general cluster manifolds by studying Poisson bracket degeneracy;
To study the relation between tropical cluster varieties and varieties of tropical curve;
To find a geometric representation for of Belavin-Drinfeld brackets and to determine the corresponding connectivity spaces;
To generalise real Hurwitz numbers introduced by Zvonkin and Itenberg for polynomial maps to rational maps.

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Hosting organization	Field of studies	City	Invited researcher	Time span of the project
Laboratory of Inter-disciplinary Power Engineering Problems Ulyanovsk State Technical University	Maths	Ulyanovsk	Simos Theodore Elias Greece	2021-2023
Probabilistic Methods in Analysis Saint-Petersburg State University	Maths	St. Petersburg	Hedenmalm Haakan Per Sweden	2021-2023
Laboratory of Combinatorial and Geometrical Structures Moscow Institute of Physics and Technology	Maths	Dolgoprudniy	János Pach Hungary, USA	2019-2021