2 papers
math-ph2026
Algebraic approach to the inverse spectral problem for rational matrices
Marco Bertola
We consider the problem of reconstruction of an matrix with coefficients depending rationally on from the data of: (a) its characteristic polynomial…
nlin.SI2025
The -matrix structure on the moduli space of framed Higgs pairs
M. Bertola
On the space of matrices with rational (trigonometric/elliptic) entries there is a well-known Lie-Poisson -matrix structure. The known -matrices are defined on the Riemann sp…