%0 Journal Article %A Z. Chen %A B. Sun %A J. 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 https://jolt.centre-mersenne.org/articles/10.5802/jolt.1337/ %R 10.5802/jolt.1337 %F JOLT_2024_34_2_a2