quadratic differential

Two systems of nonlinear ordinary differential equations are studied, which are quadratic CSTR model and SG model.

研究了两个非线性常微分方程系统二次型CSTR模型和SG模型.

This article introduced a new Lorenz-like system of three-dimensional quadratic autonomous ordinary differential equations.

提出一种新的类Lorenz系统，它具有三维二次型的自治常微分方程组形式。

An Existence Problem of Ellipse Separatrix Cycle of Quadratic Differential System and Cubic Differential System

二次系统与三次系统的椭圆分界线环的存在性问题

This article would study on two types of discrete time predator-prey systems aiming at maximizing their profits and capture by using differential methods, quadratic function theory and Gordon theory respectively.

针对两类离散的捕食-食饵系统，以最大利润和最大捕获量为目标，分别应用微分方法、二次函数理论及Gordon理论，研究了同时捕获及单独捕获的捕获策略。