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math-ph2026
Finite temperature Fredholm determinants for dynamical correlation functions
Oleksandr Gamayun
We study the long-time, large-distance asymptotics of finite-temperature dynamical Fredholm determinants using effective form factors. The method expresses these asymptotics as a f…
math-ph2026
Cohomological beta function
Oleksandr Gamayun, Maxim Gritskov, Andrey Losev
We propose a cohomological approach to computing the conformal anomaly. Using the example of current-current deformations of two-dimensional conformal field theories, we reproduce…