Modulus of Continuity of Controlled Loewner-Kufarev Equations and Random Matrices

First we introduce the two tau-functions which appeared either as the \(\tau\)-function of the integrable hierarchy governing the Riemann mapping of Jordan curves or in conformal field theory and the universal Grassmannian. Then we discuss various aspects of their interrelation. Subsequently, we est...

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Bibliographic Details
Published in:arXiv.org 2019-03
Main Authors: Amaba, Takafumi, Friedrich, Roland
Format: Article
Language:English
Subjects:
Conformal mapping
Field theory
Growth models
Online Access:Get full text
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Summary:First we introduce the two tau-functions which appeared either as the \(\tau\)-function of the integrable hierarchy governing the Riemann mapping of Jordan curves or in conformal field theory and the universal Grassmannian. Then we discuss various aspects of their interrelation. Subsequently, we establish a novel connection between free probability, growth models and integrable systems, in particular for second order freeness, and summarise it in a dictionary. This extends the previous link between conformal maps and large \(N\)-matrix integrals to (higher) order free probability. Within this context of dynamically evolving contours, we determine a class of driving functions for controlled Loewner-Kufarev equations, which enables us to give a continuity estimate for the solution to such equations when embedded into the Segal-Wilson Grassmannian.
ISSN:2331-8422