2 papers
math-ph2025
Products of random Hermitian matrices and brickwork Hurwitz numbers. Products of normal matrices
Ch. Li, A. Yu. Orlov
We consider products of random Hermitian matrices which generalize the one-matrix model and show its relation to Hurwitz numbers which count ramified coverings of certain type.…
nlin.SI2020
Virasoro symmetries of Multi-Component Gelfand-Dickey systems
Ling An, Chuanzhong Li
In this paper, we mainly study the additional symmetry and functions of a multi-component Gelfand-Dickey hierarchy which includes many classical integrable systems, such as the…