Generalized discrete integrable operator and integrable hierarchy

Fuente: arXiv
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Main Author: Liu, Huan
Format: Preprint
Published: 2025
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author Liu, Huan
author_facet Liu, Huan
contents We introduce and systematically develop two classes of discrete integrable operators: those with $2\times 2$ matrix kernels and those possessing general differential kernels, thereby generalizing the discrete analogue previously studied. A central finding is their inherent connection to higher-order pole solutions of integrable hierarchies, contrasting sharply with standard operators linked to simple poles. This work not only provides explicit resolvent formulas for matrix kernels and differential operator analogues but also offers discrete integrable structures that encode higher-order behaviour.
format Preprint
id arxiv_https___arxiv_org_abs_2511_05046
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Generalized discrete integrable operator and integrable hierarchy
Liu, Huan
Exactly Solvable and Integrable Systems
We introduce and systematically develop two classes of discrete integrable operators: those with $2\times 2$ matrix kernels and those possessing general differential kernels, thereby generalizing the discrete analogue previously studied. A central finding is their inherent connection to higher-order pole solutions of integrable hierarchies, contrasting sharply with standard operators linked to simple poles. This work not only provides explicit resolvent formulas for matrix kernels and differential operator analogues but also offers discrete integrable structures that encode higher-order behaviour.
title Generalized discrete integrable operator and integrable hierarchy
topic Exactly Solvable and Integrable Systems
url https://arxiv.org/abs/2511.05046