Noether symmetries and conserved quantities for fractional Birkhoffian systems with time delay. - Xiang-Hua Zhai; Yi Zhang 045 (Commun. Nonlinear Sci. Numer. Simul., 2016)

Noether theorem for non-conservative systems with time delay on time scales. - Xiang-Hua Zhai; Yi Zhang 045 (Commun. Nonlinear Sci. Numer. Simul., 2017)

Hamilton-Jacobi Method for Mechanical Systems on Time Scales. - Xiang-Hua Zhai; Yi Zhang 045 (Complex., 2018)

Conservation Laws for a Delayed Hamiltonian System in a Time Scales Version. - Xiang-Hua Zhai; Yi Zhang 045 (Symmetry, 2018)

Perturbation to Lie symmetry and adiabatic invariants for Birkhoffian systems on time scales. - Yi Zhang 045; Xiang-Hua Zhai (Commun. Nonlinear Sci. Numer. Simul., 2019)

Mei Symmetry and New Conserved Quantities of Time-Scale Birkhoff's Equations. - Xiang-Hua Zhai; Yi Zhang 045 (Complex., 2020)

Noether Symmetry of Multi-Time-Delay Non-Conservative Mechanical System and Its Conserved Quantity. - Xingyu Ji; Zhengwei Yang; Xiang-Hua Zhai (Symmetry, 2024)