3 papers
nlin.SI2020
Symmetric discrete AKP and BKP equations
Shangshuai Li, Frank W. Nijhoff, Ying-ying Sun +1
We show that when KP (Kadomtsev-Petviashvili) functions allow special symmetries, the discrete BKP equation can be expressed as a linear combination of the discrete AKP equatio…
nlin.SI2019
Elliptic solutions of Boussinesq type lattice equations and the elliptic Nth root of unity
Frank W Nijhoff, Ying-ying Sun, Da-jun Zhang
We establish an infinite family of solutions in terms of elliptic functions of the lattice Boussinesq systems by setting up a direct linearisation scheme, which provides the soluti…
nlin.SI2019
Rational solutions for three semi-discrete modified Korteweg-de Vries type equations
Yingying Sun, Songlin Zhao
In this paper, we consider three semi-discrete modified Korteweg-de Vries type equations which are the nonlinear lumped self-dual network equation,the semi-discrete lattice potenti…