$R^n$空间上微分运算复合的若干组合问题
Some combinatorial aspects of differential operation compositions on space $R^n$
摘要：
本文给出了一个递归关系，用于计算空间$R^{n}$（n= 3，4，.）上高阶微分运算的有意义复合.并提取高于二阶的非平凡合成。
英文摘要：
In this paper we present a recurrent relation for counting meaningful compositions of the higher-order differential operations on the space $R^{n}$ (n=3,4,...) and extract the non-trivial compositions of order higher than two.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
