Multiple soliton solutions for the (2+12+1)-dimensional asymmetric Nizhnik–Novikov–Veselov equation

The asymmetric Nizhnik–Novikov–Veselov equation will be investigated. The Hirota bilinear method will be used to derive NN-soliton solutions of this completely integrable equation. Multiple singular soliton solutions will be developed as well. The asymmetric Nizhnik–Novikov–Veselov equation does not show any resonant phenomenon.