activity
20182025
most citedQuantum spectral problems and isomonodromic deformations

15 citations · 69 across the 13 of their papers we have counts for

collaborators

15 papers

math-ph2025

Modular transformations of tau functions and conformal blocks on the torus

Fabrizio Del Monte, Harini Desiraju, Pavlo Gavrylenko

The connection problem for isomonodromic tau functions on the one-punctured torus concerns the ratio between the tau function and its modular transform, associated to dual pants de…

hep-th2025★ 1 cited

On a 5D UV completion of Argyres-Douglas theories

Giulio Bonelli, Pavlo Gavrylenko, Ideal Majtara +1

We discuss a novel UV completion of a class of Argyres-Douglas (AD) theories in the -background by its embedding into the renormalisation group flow from five dimensional $\math…

hep-th2025

Blowing-up the edge: connection formulae and stability chart of the Lamé equation

Giulio Bonelli, Pavlo Gavrylenko, Tommaso Pedroni +1

We study periodic spectral problems through their connection with supersymmetric gauge theories and two-dimensional conformal field theory. To characterize the associated stability…

math-ph2025

Riemann-Hilbert problems, Fredholm determinants, explicit combinatorial expansions, and connection formulas for the general -Painlevé III tau functions

Pavlo Gavrylenko

We reformulate the -difference linear system corresponding to the -Painlevé equation of type as a Riemann-Hilbert problem on a circle. Then, we consider the Fred…

hep-th2024

Surface observables in gauge theories, modular Painlevé tau functions and non-perturbative topological strings

Giulio Bonelli, Pavlo Gavrylenko, Ideal Majtara +1

We study BPS surface observables of four dimensional gauge theory in gravitational -background at perturbative and at Argyres-Douglas superconformal fixe…

hep-th2023★ 2 cited

2d Sigma Models on Non-compact Calabi-Yau and Liouville Theory

Pavlo Gavrylenko, Evgenii Ievlev, Andrei Marshakov +2

We consider a class of two dimensional conformal supersymmetric gauge linear sigma models with fields of charges and fields of charges , wh…

hep-th2023★ 2 cited

Connecting topological strings and spectral theory via non-autonomous Toda equations

Pavlo Gavrylenko, Alba Grassi, Qianyu Hao

We consider the Topological String/Spectral theory duality on toric Calabi-Yau threefolds obtained from the resolution of the cone over the singularity. Assuming Kyiv for…

math-ph2022★ 5 cited

Monodromy dependence and symplectic geometry of isomonodromic tau functions on the torus

Fabrizio Del Monte, Harini Desiraju, Pavlo Gavrylenko

We compute the monodromy dependence of the isomonodromic tau function on a torus with Fuchsian singularities and residue matrices by using its explicit Fredholm determi…

math-ph2021★ 15 cited

Quantum spectral problems and isomonodromic deformations

Mikhail Bershtein, Pavlo Gavrylenko, Alba Grassi

We develop a self-consistent approach to study the spectral properties of a class of quantum mechanical operators by using the knowledge about monodromies of linear sys…

math-ph2020★ 12 cited

Isomonodromic tau functions on a torus as Fredholm determinants, and charged partitions

Fabrizio Del Monte, Harini Desiraju, Pavlo Gavrylenko

We prove that the isomonodromic tau function on a torus with Fuchsian singularities and generic monodromies in can be written in terms of a Fredholm determinant…

nlin.SI2020★ 7 cited

Solution of tetrahedron equation and cluster algebras

Pavlo Gavrylenko, Mykola Semenyakin, Yegor Zenkevich

We notice a remarkable connection between Bazhanov-Sergeev solution of Zamolodchikov tetrahedron equation and certain well-known cluster algebra expression. The tetrahedron transfo…

math-ph2020★ 9 cited

Irregular conformal blocks, Painlevé III and the blow-up equations

Pavlo Gavrylenko, Andrei Marshakov, Artem Stoyan

We study the relation of irregular conformal blocks with the Painlevé III equation. The functional representation for the quasiclassical irregular block is shown to be consiste…

hep-th2019★ 2 cited

Circular quiver gauge theories, isomonodromic deformations and fermions on the torus

Giulio Bonelli, Fabrizio Del Monte, Pavlo Gavrylenko +1

We study the relation between class S theories on punctured tori and isomonodromic deformations of flat SL(N) connections on the two dimensional torus with punctures. Turning on th…

math-ph2018★ 3 cited

Crossing invariant correlation functions at from isomonodromic functions

Pavlo Gavrylenko, Raoul Santachiara

We present an approach that gives rigorous construction of a class of crossing invariant functions in CFTs from the weakly invariant distributions on the moduli space $\mathc…

math-ph2018★ 11 cited

Higher rank isomonodromic deformations and W-algebras

P. Gavrylenko, N. Iorgov, O. Lisovyy

We construct the general solution of a class of Fuchsian systems of rank as well as the associated isomonodromic tau functions in terms of semi-degenerate conformal blocks of $…