Journal
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Volume 55, Issue 20, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1751-8121/ac5e74
Keywords
Ablowitz-Ladik hierarchy; tau-function; matrix-resolvent method; CUE
Categories
Funding
- H2020-MSCA-RISE-2017 Project [778010 IPaDEGAN]
- International Research Project PIICQ - CNRS
- National Key R and D Program of China [2020YFA0713100]
- NSFC [12061131014]
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In this study, we extended the matrix-resolvent method to compute logarithmic derivatives of tau-functions in the Ablowitz-Ladik hierarchy. We derived a formula for the generating series of logarithmic derivatives using matrix resolvents. As an application, we introduced a method to compute certain integrals over the unitary group.
We extend the matrix-resolvent method for computing logarithmic derivatives of tau-functions to the Ablowitz-Ladik hierarchy. In particular, we derive a formula for the generating series of the logarithmic derivatives of an arbitrary tau-function in terms of matrix resolvents. As an application, we provide a way of computing certain integrals over the unitary group.
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