3 papers
nlin.SI2026
Bihamiltonian tests for integrable systems associated to rank- F-CohFTs
Alexandr Buryak, Jianghao Xu, Di Yang
Double ramification (DR) hierarchies associated to rank- F-CohFTs are important integrable perturbations of the Riemann--Hopf hierarchy. In this paper, we perform bihamiltonian…
math-ph2025
On a class of integrable deformations of the integrable hierarchy of topological type associated to a semisimple Frobenius manifold
Si-Qi Liu, Paolo Rossi, Di Yang +1
Given a semisimple Frobenius manifold, we construct a class of integrable deformations of its hierarchy of topological type. We show that these integrable deformations have polynom…
nlin.SI2025
From Toda Hierarchy to KP Hierarchy
Di Yang, Jian Zhou
Using the matrix-resolvent method and a formula of the second-named author on the -point function for a KP tau-function, we show that the tau-function of an arbitrary solution t…