activity
20092026
most citedA polynomial bracket for the Dubrovin--Zhang hierarchies

67 citations · 510 across the 48 of their papers we have counts for

collaborators

54 papers

math.AG2026

Cetraro lectures on integrable systems and moduli spaces of curves

Alexandr Buryak, Paolo Rossi

In these lecture notes we review some constructions and results on the relation between topology of the moduli space of stable curves and integrable systems of evolutionary PDEs.

math-ph2026

Quantum hierarchies of the ILW and BO equations and the DR cycles on the moduli spaces of curves

Alexandr Buryak, Abner Hernandez Rodriguez

In an earlier paper of P. Rossi and the first author, a construction of a wide class of quantum hierarchies was presented, with the input data given by an arbitrary cohomological f…

math-ph2025

Deformations of the Riemann hierarchy and the geometry of

Alexandr Buryak, Paolo Rossi

The Riemann hierarchy is the simplest example of rank one, (+)-dimensional integrable system of nonlinear evolutionary PDEs. It corresponds to the dispersionless limit of the…

math-ph2024

Bihamiltonian structure of the DR hierarchy in the semisimple case

Alexandr Buryak, Paolo Rossi

Of the two approaches to integrable systems associated to semisimple cohomological field theories (CohFTs), the one suggested by Dubrovin and Zhang and the more recent one using th…

math.AG2024

Quantum intersection numbers and the Gromov-Witten invariants of

Xavier Blot, Alexandr Buryak

The notion of a quantum tau-function for a natural quantization of the KdV hierarchy was introduced in a work of Dubrovin, Guéré, Rossi, and the second author. A certain natural ch…

math-ph2023

An application of the nonlinear reciprocal transformations in the theory of DR hierarchies

Alexandr Buryak, Mikhail Troshkin

We prove that the DR hierarchy corresponding to the family of F-cohomological field theories without unit considered in a previous work of the first author together with D. Gubarev…

math.AG2022★ 6 cited

Tautological relations and integrable systems

Alexandr Buryak, Sergey Shadrin

We present a family of conjectural relations in the tautological cohomology of the moduli spaces of stable algebraic curves of genus with marked points. A large part of the…

math.AG2022

A formula for the Gromov-Witten potential of an elliptic curve

Alexandr Buryak

An algorithm to determine all the Gromov-Witten invariants of any smooth projective curve was obtained by Okounkov and Pandharipande in 2006. They identified stationary invariants…

math-ph2022★ 2 cited

A construction of open descendant potentials in all genera

Alexander Alexandrov, Alexey Basalaev, Alexandr Buryak

We present a construction of an open analogue of total descendant and total ancestor potentials via an "open version" of Givental's action. Our construction gives a genus expansion…

math.AG2021★ 1 cited

Moduli spaces of residueless meromorphic differentials and the KP hierarchy

Alexandr Buryak, Paolo Rossi, Dimitri Zvonkine

We prove that the cohomology classes of the moduli spaces of residueless meromorphic differentials, i.e., the closures, in the moduli space of stable curves, of the loci of smooth…

math.AG2021★ 4 cited

A conjectural formula for

Alexandr Buryak, Francisco Hernández Iglesias, Sergey Shadrin

We propose a conjectural formula for and check all its expected properties. Our formula refines the one point case of a similar conjecture made by the first named…

math-ph2021★ 1 cited

The bihamiltonian structures of the DR/DZ hierarchies at the approximation up to genus one

Oscar Brauer, Alexandr Buryak

In a recent paper, giving an arbitrary homogeneous cohomological field theory (CohFT), Rossi, Shadrin, and the first author proposed a simple formula for a bracket on the space loc…

math.DG2021

Riemannian F-manifolds, bi-flat F-manifolds, and flat pencils of metrics

Alessandro Arsie, Alexandr Buryak, Paolo Lorenzoni +1

In this paper we study relations between various natural structures on F-manifolds. In particular, given an arbitrary Riemannian F-manifold we present a construction of a canonical…

math-ph2020★ 15 cited

Flat F-manifolds, F-CohFTs, and integrable hierarchies

Alessandro Arsie, Alexandr Buryak, Paolo Lorenzoni +1

We define the double ramification hierarchy associated to an F-cohomological field theory and use this construction to prove that the principal hierarchy of any semisimple (homogen…

math-ph2020★ 1 cited

Open topological recursion relations in genus and integrable systems

Oscar Brauer, Alexandr Buryak

The paper is devoted to the open topological recursion relations in genus 1, which are partial differential equations that conjecturally control open Gromov-Witten invariants in ge…

math-ph2020★ 10 cited

Towards a bihamiltonian structure for the double ramification hierarchy

Alexandr Buryak, Paolo Rossi, Sergey Shadrin

We propose a remarkably simple and explicit conjectural formula for a bihamiltonian structure of the double ramification hierarchy corresponding to an arbitrary homogeneous cohomol…

math-ph2020★ 2 cited

Open r-spin theory I: Foundations

Alexandr Buryak, Emily Clader, Ran J. Tessler

We lay the foundation for a version of -spin theory in genus zero for Riemann surfaces with boundary. In particular, we define the notion of -spin disks, their moduli space,…

math.SG2020★ 5 cited

Open descendent theory I: The stationary sector

Alexandr Buryak, Amitai Netser Zernik, Rahul Pandharipande +1

We define stationary descendent integrals on the moduli space of stable maps from disks to . We prove a localization formula for the stationary theor…

math.AG2020

Semisimple flat F-manifolds in higher genus

Alessandro Arsie, Alexandr Buryak, Paolo Lorenzoni +1

In this paper, we generalize the Givental theory for Frobenius manifolds and cohomological field theories to flat F-manifolds and F-cohomological field theories. In particular, we…

math-ph2019★ 2 cited

Open Saito theory for and singularities

Alexey Basalaev, Alexandr Buryak

A well known construction of B. Dubrovin and K. Saito endows the parameter space of a universal unfolding of a simple singularity with a Frobenius manifold structure. In our paper…

math.AG2019★ 13 cited

Quadratic double ramification integrals and the noncommutative KdV hierarchy

Alexandr Buryak, Paolo Rossi

In this paper we compute the intersection number of two double ramification cycles (with different ramification profiles) and the top Chern class of the Hodge bundle on the moduli…

math-ph2019

Open WDVV equations and Virasoro constraints

Alexey Basalaev, Alexandr Buryak

In their fundamental work, B. Dubrovin and Y. Zhang, generalizing the Virasoro equations for the genus 0 Gromov-Witten invariants, proved the Virasoro equations for a descendent po…

math.SG2018★ 6 cited

Open -spin theory II: The analogue of Witten's conjecture for -spin disks

Alexandr Buryak, Emily Clader, Ran J. Tessler

We conclude the construction of -spin theory in genus zero for Riemann surfaces with boundary. In particular, we define open -spin intersection numbers, and we prove that the…

math-ph2018★ 5 cited

Simple Lax Description of the ILW Hierarchy

Alexandr Buryak, Paolo Rossi

In this note we present a simple Lax description of the hierarchy of the intermediate long wave equation (ILW hierarchy). Although the linear inverse scattering problem for the ILW…