287 citations · 2.5k across the 64 of their papers we have counts for
67 papers
Exact solution of the Seven-Vertex Model on a dynamical lattice
Mateus da Silva Junca, Ivan Kostov, Andre Alves Lima
We give the complete solution of the one-parameter deformation of the six-vertex model on dynamical lattice introduced in [1] and dubbed gravitational seven-vertex model. The stati…
A Matrix Model for Higher-Genus Fuss--Catalan Numbers
Anatol Kirillov, Ivan Kostov
The genus-g Fuss--Catalan (FC) number counts the number of ways to obtain a genus-g surface by identifying the edges of a pn-gon via p-valent hyperedges. For p=2 these are the genu…
Light-cone limits of large rectangular fishnets
Ivan Kostov
Basso-Dixon integrals evaluate rectangular fishnets -- Feynman graphs with massless scalar propagators which form a rectangular grid -- which arise in certain one-trace…
Two-dimensional massive integrable models on a torus
Ivan Kostov
The finite-volume thermodynamics of a massive integrable QFT is described in terms of a grand canonical ensemble of loops immersed in a torus and interacting through scattering fac…
Octagon with finite bridge: free fermions and determinant identities
Ivan Kostov, Valentina B. Petkova
We continue the study of the octagon form factor which helps to evaluate a class of four-point correlation functions in SYM theory. The octagon is characterised, be…
Effective Quantum Field Theory for the Thermodynamical Bethe Ansatz
Ivan Kostov
We construct an effective Quantum Field Theory for the wrapping effects in 1+1 dimensional models of factorised scattering. The recently developed graph-theoretical approach to TBA…