Lun Ji, Hang Li, Alexander Ostermann, Gangfan Zhong, Explicit Fourier Integrator for the Periodic dNLS via Gauge Transformation: Low-Regularity Estimates in Discrete Bourgain Spaces, Preprint, arXiv: 2606.19648v2, submitted. arXiv

Lun Ji, Hang Li, Alexander Ostermann, A low regularity exponential-type integrator for the derivative nonlinear Schrödinger equation, Preprint, arXiv: 2601.20212, submitted.  arXiv

Lun Ji, Hang Li, Chunmei Su, Low-regularity error estimates of a filtered Lie-Trotter splitting scheme for the Zakharov system in arbitrary dimensions, Preprint, arXiv: 2503.10196v2, submitted.  arXiv

Lun Ji, Xiaofei Zhao, Error estimates of time-splitting schemes for nonlinear Klein--Gordon equation with rough data, SIAM J. Numer. Anal., 64(4): 1364--1389 (2026).  arXiv  DOI

Lun Ji, Hang Li, Alexander Ostermann, Chunmei Su, Filtered Lie-Trotter splitting for the "good" Boussinesq equation: low regularity error estimates, Math. Comp., 94(355): 2345--2365 (2025).  arXiv  DOI

Lun Ji, Alexander Ostermann, Frédéric Rousset, Katharina Schratz, Low regularity error estimates for the time integration of 2D NLS, IMA J. Numer. Anal., 45(4): 2023--2059 (2025).  arXiv  DOI

Lun Ji, Yifa Tang, Bin Wang, Beibei Zhu, Energy-preserving methods for gyrocenter system in strong magnetic field, Phys. Scr. 100: 035205 (2025).  DOI

Lun Ji, Alexander Ostermann, Frédéric Rousset, Katharina Schratz, Low regularity full error estimates for the cubic nonlinear Schrödinger equation, SIAM J. Numer. Anal., 62(5): 2071--2086 (2024).  arXiv  DOI

Beibei Zhu, Lun Ji, Aiqing Zhu, Yifa Tang, Explicit K-symplectic methods for nonseparable non-canonical Hamiltonian systems, Chin. Phys. B, 32: No.2 (2023).  arXiv  DOI

Beibei Zhu, Lun Ji, Aiqing Zhu, Yifa Tang, Poisson Integrators Based on Splitting Method for Poisson Systems, Comm. Comp. Phys., 32: 1129--1155 (2022).  arXiv  DOI

Ping Wang, Lun Ji, Jing Yuan, Zhenguo An, Kaiqi Yan, Jingjie Zhang, The influence of inner material with different average thermal conductivity on the performance of whole insulation system for liquid hydrogen on orbit storage, Int. J. Hydrogen Energy, 46(18): 10913--10923 (2021).  DOI

Weiping  Bu, Lun Ji, Yifa Tang, Jie Zhou, Space-time finite element method for the distributed-order time fractional reaction diffusion equations, Appl. Numer. Math., 152: 446--465 (2020).  DOI

Ping Wang, Lun Ji, Jing Yuan, Zhenguo An, Kaiqi Yan, Jingjie Zhang, Modeling and optimization of composite thermal insulation system with HGMs and VDMLI for liquid hydrogen on orbit storage, Int. J. Hydrogen Energy, 46(11): 7088--7097 (2020).  DOI

Lun Ji, Alexander Ostermann, Low regularity error estimates for high dimensional nonlinear Schrödinger equations, Spectral and High-Order Methods for Partial Differential Equations ICOSAHOM 2023, S. Chun, J.-H. Jung, E.-J. Park, and J. Shen, eds., Lect. Notes Comput. Sci. Eng., 142: 257--273 (2025).  arXiv  DOI