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  4. Algebraic, Analytical and Numerical Perspectives on the Universe of Integrable Systems

Algebraic, Analytical and Numerical Perspectives on the Universe of Integrable Systems

File(s)
Chee_cornellgrad_0058F_14116.pdf (1.25 MB)
Permanent Link(s)
http://doi.org/10.7298/8sev-rh28
https://hdl.handle.net/1813/115670
Collections
Cornell Theses and Dissertations
Author
Chee, Andrew
Abstract

In this work, we employ algebraic techniques and isospectral-type schemes, including similarity, intertwining, gateway, and interweaving relations, to the study of Dyson semigroups and ensembles on the Weyl chamber. (1) First, we construct and provide analytical and ergodic properties of Dyson semigroups, i.e. C0-semigroups on the Weyl chamber. The Weyl chamber is the natural state space to describe the dynamics of eigenvalues of random matrices, as well as for many models in statistical mechanics, population dynamics and combinatorics. (2) Then, motivated by the renormalization group theory developed recently by Patie to study scaling limits and universality of self-adjoint operators, we introduce new discrete scaling operators for studying the local and global scaling limits and universality of determinantal point processes in the discrete Weyl Chambers. These methods extend to the study of non-Markov determinantal Laguerre-Polya semigroups whose invariant distributions are biorthogonal ensembles, including the celebrated Borodin-Muttalib ensembles. (3) Finally, we exploit the concepts of gateway and interweaving relations between continuous and discrete models to design exact algorithms for computing functionals of classical Dyson semigroups.

Description
299 pages
Date Issued
2023-12
Keywords
Dyson processes
•
Integrable Probability
•
Random Matrix Theory
•
Representation Theory
•
Spectral Theory
Committee Chair
Patie, Pierre
Committee Member
Sosoe, Philippe
Saloff-Coste, Laurent
Degree Discipline
Operations Research and Information Engineering
Degree Name
Ph. D., Operations Research and Information Engineering
Degree Level
Doctor of Philosophy
Rights
Attribution-ShareAlike 4.0 International
Rights URI
https://creativecommons.org/licenses/by-sa/4.0/
Type
dissertation or thesis
Link(s) to Catalog Record
https://newcatalog.library.cornell.edu/catalog/16454672

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