Optimal convergence rate of the explicit Euler method for convection-diffusion equations. - Qifeng Zhang 001; Jiyuan Zhang 010; Zhi-Zhong Sun (Appl. Math. Lett., 2022)

Optimal convergence rate of the explicit Euler method for convection-diffusion equations II: high dimensional cases. - Qifeng Zhang 001; Jiyuan Zhang 010; Zhi-Zhong Sun (CoRR, 2022)

Error estimates of invariant-preserving difference schemes for the rotation-two-component Camassa-Holm system with small energy. - Qifeng Zhang 001; Jiyuan Zhang 010; Zhimin Zhang (CoRR, 2023)