关于不稳定非线性偏微分方程的一个数值不变量

A Numerical Invariant of Unstable Nonlinear Partial Differential Equations

本文证明了任何ｌ－简单（ｌ≥１）的非线性偏微分方程组是不稳定方程组．

This paper proves that any system of l-Simple (l≥1) non-linear Partial differential equations is unstable.