摘要

Using the standard truncated Painleve analysis, we can obtain a Backlund transformation of the (3 1)dimensional Nizhnik -Novikov-Veselov (NNV) equation and got some (3 1)-dimensional single-, two- and three-soliton solutions and some new types of multisoliton solutions of the (3 1)-dimensional NNV system from the Backlund transformation and the trivial vacuum solution.