With the help of Mathematica symbolic calculation software, the new soliton solutions of the (2 + 1)-dimensional dissipative long wave equation were obtained by utilizing the $exp(-\mathrm{\Phi }(\xi ))$ expansion method and the variable separation method, which include the linear soliton solution, periodic lump solution, ring soliton solution, and solitoff soliton solution. The elastic collision, soliton fission, and soliton annihilation of the soliton solution of the (2+1)-dimensional dissipative long wave equation were discussed as well in this paper.

中文翻译：

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（2 + 1）维耗散长波方程的孤子解和演化

借助于Mathematica符号计算软件，利用（2 + 1）维耗散长波方程的新孤子解得到了 $经验值（--\mathrm{\Phi }（\xi ））$扩展方法和变量分离方法，包括线性孤子解，周期块解，环孤子解和孤子孤子解。本文还讨论了（2 + 1）维耗散长波方程孤子解的弹性碰撞，孤子裂变和孤子an没。