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中文摘要：
一个修改印射的方法被用来与二个任意的函数获得可变分离答案(2+1 ) 维的 BroerKaupKupershmidt 方程。基于可变分离答案并且由选择适当功能，我们讨论在二 dromion 格子之间的完全有弹性的迎头向前的碰撞，“在二之间的非完全有弹性的追逐”和碰撞在 anti-dromion 和 dromion 对之间的 multi-dromion-pairs 和完全无弹性的相互作用现象。
英文摘要：
A modified mapping method is used to obtain variable separation solution with two arbitrary functions of the （2＋1）-dimensional Broer-Kaup Kupershmidt equation. Based on the variable separation solution and by selecting appropriate functions, we discuss the completely elastic head-on collision between two dromion-lattices, non-completely elastic “chase and collision” between two multi-dromion-pairs and completely non-elastic interaction phenomenon be- tween anti-dromion and dromion-pair.
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