Lax pair, interactions and conversions of the nonlinear waves for a (2+1)-dimensional nonlinear Schrödinger equation in a Heisenberg ferromagnetic spin chainXia-Xia Du, Bo Tian, He-Yuan Tian and Yan SunEur. Phys. J. Plus, 136 7 (2021) 753DOI: https://doi.org/10.1140/epjp/s13360-021-01718-z