论文标题
第四顺序线性差分运算符的不变性
Invariants of forth order linear differential operators
论文作者
论文摘要
在本文中，我们在定向的二维歧管上研究标量线性差分运算符。我们研究了这些操作员的差异不变，并将其应用于等效问题。
In this paper, we study scalar the forth order linear differential operators over an oriented 2-dimensional manifold. We investigate differential invariants of these operators and show their application to the equivalence problem.
