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1)  The third order quasilinear differential equation
三阶拟线性常微分方程
2)  second order semi-linear ordinary differential equation
二阶拟线性常微分方程
1.
This paper studies the existence of positive slolutions of a class of second order semi-linear ordinary differential equations and obtain some sufficient conditions under which the equation has at least two positive solutions by using fixed point thegrem.
本文考虑一类二阶拟线性常微分方程的两点边值问题两个正解的存在性,并利用不动点定理获得了至少存在两个正解的充分条件。
3)  fourth order quasilinear differential equations
四阶拟线性常微分方程
1.
In this paper we are concerned with the fourth order quasilinear differential equations:under the condition thatαandβare positive constants , p(t) and q(t) are continuous functions on an infinite interval [a,∞),a>0.
在此之前,下面两个类似的四阶拟线性微分方程:和已被很全面的研究过了,这篇论文对这类方程是一个补充,更加完整地完成了对这类四阶拟线性常微分方程的解的振动性与非振动性的讨论。
4)  nonlinear third-order ordinary differential equation
非线性三阶常微分方程
5)  Third order nonlinear differential equatiions
三阶非线性常微分方程
6)  third-order quasilinear differential equation
三阶拟线性微分方程
1.
On the basis of a class of second-order quasilinear differential equations,the set of nonoscillatory solutions of a class of third-order quasilinear differential equations,which is similar with the second-order quasilinear differential equations in form is investigated.
在一类二阶拟线性微分方程的基础上,分析了与该类微分方程形式相近的三阶拟线性微分方程非振动解的结构,分析结果表明,三阶拟线性微分方程非振动解的情况同该类二阶拟线性微分方程解的情况相似。
补充资料:三阶
【三阶】
 (人名)自隋至唐初有所谓三阶法者,为三阶禅师信行所创。信行姓正氏,魏郡人,其母祈佛而生。四岁出家,八岁转涉经论,后于相州法藏寺受具足戒,持戒严峻,四远英达,皆造其门。隋开皇初,住真寂寺。撰对根起行,三阶集录等四十余卷。智行兼备,时称为四依之菩萨。其化大行。十四年寂,寿五十四。见续高僧传十四。
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