2 papers
nlin.SI2023
Determination of the symmetry group for some QRT roots
Giorgio Gubbiotti, Yang Shi
We determine the affine Weyl symmetries of some two-dimensional birational maps known as QRT roots arising from Kahan--Hirota--Kimura discretisation of two different reduced Nahm s…
math-ph2022
Translations in affine Weyl groups and their applications in discrete integrable systems
Yang Shi
In this paper, we review the properties and representations of the Weyl groups relevant in the study of discrete integrable systems. Previously in \cite{jns4, Shi:19}, properties o…