平面上线性偏微分算子的$X$ -和$Y$ -不变量
$X$- and $Y$-invariants of Linear Partial Differential Operators in the plane (In Russian)
摘要:
我们考虑计算机代数中的一个经典问题:偏微分方程的符号解。本文将双曲算子微分变换的著名的达布定理推广到不变量空间。我们引入了一个新的概念--这种算子的$X$ -和$Y$ -不变量,作为用这种算子的Laplace不变量表示的方程的解.给出了在达布变换下$X$ -和$Y$ -不变量集合变化的显式表达式.
英文摘要:
We consider a classical problem of Computer Algebra: symbolic solution of PDEs. We transform the famous Darboux theorems on differential transformations of hyperbolic operator into the space of invariants. We introduce a new idea -- $X$- and $Y$-invariants of such operator as solutions of some equations written in terms of the Laplace invariants of this operator. Explicit formula for the changes in the sets of the $X$- and $Y$-invariants under the Darboux transformations are obtained.
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。