查询词典 quasilinear

Neutral type ; quasilinear ; parabolic differential equation ; systems ; oscillation

中立型；拟线性；抛物微分方程；方程组；振动

Firstly,we study the controllability of two classes of important quasilinear parabolic equations.

首先，我们讨论了两类重要的拟线性抛物方程的能控性。

This paper is divided two chapters. The first chapter discusses the existence and uniqueness of solution for the Cauchy problem of the following quasilinear degenerate parabolic equationThe second chapter studies the geometric properties of a Riemannian manifold.

本文分两部分，第一部分是对如下形式的拟线性退化抛物方程Cauchy问题讨论了解的存在唯一性；第二部分是讨论了黎曼流形中的一些几何问题，主要是将欧氏空间平行射线的概念推广到一般黎曼流形，并研究其所具有的性质。

The limits of non－ degenerate quasilinear equations (i.e. the regularizing problems) are established. The uniqueness theorem is proved by the contraction property of the solution.

通过对非退化拟线性抛物型方程系列解的极限研究，给出问题的存在性证明，对解的唯一性证明，用解的压缩性质。

In view of the identity, the sufficient conditions of nonexistence of weak solution for two classes of quasilinear probles are obtained.

利用该恒等式，得到了两类拟线性问题弱解不存在的充分性条件。

Based upon the theoretical analysis, a Quasilinear method of elastic-plastic finite element analysis is established.

本文在理论分析的基础上，建立了弹塑性有限元分析的拟线性法。

In the last thirty years or more quasilinear degenerateparabolic equations of second order have been the subject of extensive study.

三十多年来，二阶拟线性退缩抛物方程得到了广泛的研究。

By means of a priori estimates, a nonexistence theory for a class of quasilinear parabolic equations is established.

在第一章中，利用ODE方法，证明了一类散度型拟线性椭圆型方程边值问题径向解的存在性。

In the second chapter we consider the existence of multiple nontrivial solutions for a class of quasilinear elliptic boundary value problems.

在第二章，我们运用下半连续及鞍点定理得到了一类拟线性椭圆边值为体的多重非平凡解的存在性。

This paper is devoted to a further study of the problem of interfacesfor several kinds of quasilinear degenerate parabolic equations.

本文旨在对分界面问题作进一步探讨。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。