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Integrable Random Structures

Integrable Random Structures

Objective

The last few years have seen significant advances in the discovery and development of integrable models in probability, especially in the context of random polymers and the Kardar-Parisi-Zhang (KPZ) equation. Among these are the semi-discrete (O'Connell-Yor) and log-gamma (Seppalainen) random polymer models. Both of these models can be understood via a remarkable connection between the geometric RSK correspondence (a geometric lifting, or de-tropicalization, of the classical RSK correspondence) and the quantum Toda lattice, the eigenfunctions of which are known as Whittaker functions. This connection was discovered by the PI and further developed in collaboration with Corwin, Seppalainen and Zygouras. In particular, we have recently introduced a powerful combinatorial framework which underpins this connection. I have also explored this connection from an integrable systems point of view, revealing a very precise relation between classical, quantum and stochastic integrability in the context of the Toda lattice and some other integrable systems. The main objectives of this proposal are (1) to further develop the combinatorial framework in several directions which, in particular, will yield a wider family of integrable models, (2) to clarify and extend the relation between classical, quantum and stochastic integrability to a wider setting, and (3) to study thermodynamic and KPZ scaling limits of Whittaker functions (and associated measures) and their applications. The proposed research, which lies at the interface of probability, integrable systems, random matrices, statistical physics, automorphic forms, algebraic combinatorics and representation theory, will make novel contributions in all of these areas.
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Host institution

UNIVERSITY COLLEGE DUBLIN, NATIONAL UNIVERSITY OF IRELAND, DUBLIN

Address

Belfield
4 Dublin

Ireland

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 1 287 861,18

Beneficiaries (3)

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UNIVERSITY COLLEGE DUBLIN, NATIONAL UNIVERSITY OF IRELAND, DUBLIN

Ireland

EU Contribution

€ 1 287 861,18

THE UNIVERSITY OF WARWICK

United Kingdom

EU Contribution

€ 116 376,51

UNIVERSITY OF BRISTOL

United Kingdom

EU Contribution

€ 175 061,06

Project information

Grant agreement ID: 669306

Status

Ongoing project

  • Start date

    1 October 2015

  • End date

    30 September 2021

Funded under:

H2020-EU.1.1.

  • Overall budget:

    € 1 579 298,75

  • EU contribution

    € 1 579 298,75

Hosted by:

UNIVERSITY COLLEGE DUBLIN, NATIONAL UNIVERSITY OF IRELAND, DUBLIN

Ireland