2 papers
math.SP2026
How the Angle of Static Field Affects the Spectrum of Lattice Schrodinger Operator on
Meina Gao, Siming Li, Yingte Sun
The spectral properties of the discrete Schrodinger operator on a two-dimensional lattice under uniform static fields are critically governed by the field direction: for angles par…
math.DS2025
The Existence of Full-Dimensional KAM tori for one-dimensional nonlinear Klein-Gordon equation
Hongzi Cong, Siming Li, Xiaoqing Wu
In this paper, we investigate the almost-periodic solutions for the one-dimensional nonlinear Klein-Gordon equation within the non-relativistic limit under periodic boundary condit…