Using the method that will be introduced in Theorem 1.2, we prove the existence of weak solutions.
利用定理1．2介绍过的方法，我们用粘性消去的方法证明了其弱解的存在性。
But the uniqueness of the weak solutions and the global existence of the classical solution are not obtained.
另外，本部分还研究了相应问题古典解的爆破准则。关于弱解的唯一性和古典解的整体存在性尚未得到证明。
There are some results on the comparison of weak solutions of homogeneous hyperbolic system and its approximate model.
对于上述齐次双曲守恒律方程组与其近似模型之间解的比较，已经有人得到了相关结果。
Then the existence and uniqueness of weak solutions for a BSCB System with nonlinear diffusion term are established on 2-d bounded domains.
其次我们得到一类带有非线性扩散项的MBSC B方程组在二维有界区域上弱解的存在唯一性。
The uniqueness problem of the weak solutions of the time dependent drift diffusion model for semiconductor equation with avalanche term is considered.
研究带雪崩项的半导体漂移-扩散模型方程弱解的惟一性问题。
This paper discusses the existence of a class of singular elliptic boundary value problems. Under certain conditions, we prove that weak solutions exist.
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。
By using weak noncompact types conditions, we obtain an existence theorem of generalized weak solutions to (cp), improving the results of weak solutions in,.
讨论模的同态的群逆存在的条件，得到正则自同态的群逆通过弱广义逆表示的显式，并给出一些应用和例子。
Thfi existence and uniqueness theorems of weak solutions of initial-boundary value problems for nonlinear degenerate parabolic systems were established by lower-upper solution method.
应用上、下解方法证明非线性退缩抛物型方程组初边值问题弱解的存在唯一性。
Then the natural question is how to estimate the difference of the weak solutions to the systems describing different models, especially to estimate the weak solutions with shock waves.
因此很自然的问题就是如何对不同的近似模型的解进行比较，尤其是对带有激波间断的整体弱解进行比较。
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.
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。
Private-sector solutions to banking crises, in which strong institutions buy the weak, demand well-heeled banks.
在私有领域解决银行业危机的方式，就是强大的金融机构并购弱小的机构，这需要有富裕的银行。
And if these organizations are weak, solutions to global problems will simply not emerge.
如果这些组织机构的功能被削弱了，就无法很好的解决全球性问题。
Under the conditions of Partial ic-convex like Maps, optimality necessary conditions of weak efficient solutions for vector optimization problems with equality and inequality constraints are obtained.
在部分生成锥内部凸-锥-凸映射下，得到了既有等式约束又有不等式约束的向量优化问题弱有效解的最优性必要条件。
Even the solutions to our problems appear weak and ineffective.
甚至解决问题的答案也显得无力和无效。
And it is of great significance to analyze the features and causes of weak colony and to find solutions to support them.
对城市弱势群体的特征、成因作一剖析，从中找出扶助之策，对解决弱势群体问题具有重要的现实意义。
Weak gravity and diverse materials present problems whose solutions can be experimented with on the ocean floor, which is what the NEEMO 15 mission is trying to do.
弱重力和不同的材料，其存在的问题，可以尝试在海底，这正是NEEMO15任务是努力做的解决方案。
The characteristic method is applied and the weak discontinuous solutions of homogeneous quasilinear wave equations are discussed.
主要分析一维拟线性波方程的解的间断性。
Stability criteria for the bifurcating periodic solutions are derived in the neural network with weak kernel.
在带弱核的神经网络模型中，得到了分岔周期解稳定性准则。
On the same electrode, the currents of oxidation of HCHO in difference weak basic solutions are different.
此外，在同一电极上，甲醛在不同种类的电解质溶液中产生不同的氧化电流。
It is shown that global solutions exist if the intra-specific competitions are strong, whereas blowup solutions may exist if the intra-specific competitions are weak.
结果表明当种群自身的竞争强时，解整体存在，反之则有可能爆破。
When the stability is weak, in some conditions, the solutions of evapotranspiration rate can appear in a multi-equilibrium state.
研究还发现，绿洲中总的蒸散量的多平衡态特征只有在稳定度低的时候出现。
This thesis deals with the currently existing problems connecting the teachers' evaluation in Chinese weak middle schools, and offers some solutions and ideas from three aspects.
除引言部分外，本文共分三个部分对我国薄弱中学教师评价现存问题及若干设想作了一定的论述。
A comparison principle for nonlinear degenerate elliptic equation is derived, and a existence theorem of the coupled weak quasi-solutions of BVP for nonlinear degenerate elliptic systems is given.
建立非线往退缩椭圆型方程的比较原理并给出方程组边值问题耦合弱拟解的存在性定理。
New concepts of efficient and weak-efficient solutions for multi-objective fuzzy programming are first defined. The relation ship between the solution and the concepts of this paper is shown.
首次提出了多目标模糊规划的有效解及弱有效解概念，证明了本文的解与多目标模糊规划的有效解及弱有效解的关系。
The basic operating requirements of sour water stripping tower are presented through analyzing the properties of solutions containing volatile weak electrolytes, such as ammonia and hydrogen sulfide.
从含硫酸性污水汽提法的原理着手，分析得到了汽提塔的基本操作条件。
The basic operating requirements of sour water stripping tower are presented through analyzing the properties of solutions containing volatile weak electrolytes, such as ammonia and hydrogen sulfide.
从含硫酸性污水汽提法的原理着手，分析得到了汽提塔的基本操作条件。
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