讨论了一类具有奇异性的椭圆问题解的存在性。证明了在一定条件下，弱解存在。
This paper discusses the existence of a class of singular elliptic boundary value problems. Under certain conditions, we prove that weak solutions exist.
本文主要利用拓扑度理论中的不动点定理和变分方法中的极小作用原理及其环绕形式的临界点定理在适当的条件下讨论了一类二阶椭圆边值问题的可解性。
The aim of this thesis is to study the existence of weak solutions for semilinear second order elliptic boundary value problems under suitable conditions through topological and variational methods.
讨论了带变号扰动并且具有一定附加条件的临界椭圆方程的两个正解存在性。
This paper deals with the existence of two positive solutions for critical elliptic equations with a changed sign perturbation and with an auxiliary condition.
进而通过对椭圆形井眼周围岩石应力分布的分析，对不同岩性的地层确定了不同的井眼稳定性条件。
By analyzing the rock stress state around the elliptic borehole, the stability conditions are established for different types of formation.
在比（AR）条件更弱的一类超线性条件之下，利用变分方法讨论了一类超线性四阶椭圆方程的无穷多解的存在性。
By means of the variational approach, in a condition weaker than(AR) the existence of infinitely many solutions of fourth-order elliptic equation is discussed.
考虑具有可控增长条件的非线性椭圆方程组弱解的部分正则性。
In this paper, we consider the nonlinear elliptic systems under the controllable growth condition.
本文讨论了一类满足初值条件的非线性椭圆型方程组正整体解的存在性。
In this paper, we prove existence of positive entire solutions of a class quasi linear elliptic systems.
研究了双幅激振自同步椭圆振动系统的同步性条件和同步状态稳定性条件。
In this paper, we discussed the synchronism conditions and the synchronous state stability condition of the self-synchronous ellipse vibrating system with dual amplitudes exciting.
固壁条件下多根椭圆粒子的平均沉降速度大大小于周期性壁面条件下的平均沉降速度。
The average sedimentary velocity under no-slip wall condition is largely less than that under periodic wall boundary condition.
为认识改进型椭圆轴承的性能特点，将其与传统椭圆轴承、圆柱轴承在相同条件下进行了性能对比以发现其优越性。
To discover performance advantages of modified elliptical bearing, traditional elliptical bearing and cylinder bearing are compared with it under same conditions.
为认识改进型椭圆轴承的性能特点，将其与传统椭圆轴承、圆柱轴承在相同条件下进行了性能对比以发现其优越性。
To discover performance advantages of modified elliptical bearing, traditional elliptical bearing and cylinder bearing are compared with it under same conditions.
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