Kundt geometries and memory effects in the Brans–Dicke theory of gravity Siddhant Siddhant, Indranil Chakraborty and Sayan Kar Eur. Phys. J. C, 81 4 (2021) 350 Published online: 23 April 2021 DOI: 10.1140/epjc/s10052-021-09118-4