%0 Journal Article %A Zhiqi Chen %A Bichao Sun %A Ju Tan %T Harmonic Vector Fields on 4-Dimensional Lorentzian Oscillator Groups %J Journal of Lie Theory %D 2024 %P 319-338 %V 34 %N 2 %U http://geodesic.mathdoc.fr/item/JOLT_2024_34_2_a2/ %F JOLT_2024_34_2_a2