Kinematic equations of Lorentzian magnetic flux tubes based on split quaternion algebra Zehra Özdemir, O. Oğulcan Tuncer and Ismail Gök Eur. Phys. J. Plus, 136 9 (2021) 910 Published online: 06 September 2021 DOI: 10.1140/epjp/s13360-021-01893-z