代数方程、部分一阶常微分方程和一阶拟线性偏微分方程的增解与遗解问题田 云（西北师范大学 数学与信息科学学院, 甘肃 兰州 ）摘 要：讨论代数方程、部分一阶常微分方程和一阶拟线性偏微分方程的增解与遗解问题.关键词: 方程; 增解; 遗解中图分类号:O175.1Extraneous solution and of algebraic equations，parts of the first order differential equations and the first order quasi-linear partial differential equationsTIAN Yun(College of Mathematics and Information Science, Northwest Normal University, Lanzhou , Gansu, China)Abstract: Extraneous solution and problems have been discussed f
