查询词典 uniqueness condition

This thesis is concerned with the existence and uniqueness of solution, and global attractor's existence of two nonlinear parabolic equations in R 2 and R n.

这篇论文研究了一个R~2和一个R~n上非线性的抛物方程的解的存在性、唯一性、和全局吸引子的存在性。

This thesis presents some research on nonlinear damping Sine-Gordon beam equation and give the proof of existence and uniqueness under The details will go as follows.

本文对物理学中提出的一类具非线性阻尼的Sine-Gordon型梁方程进行了研究，给出了该方程解的存在唯一性。

Based on the analysis of the existing methods, this paper puts forward graphical method on the uniqueness of the position of land briefly introduces its steps.

在分析现有编制方法的基础上，立足于土地空间位置的唯一性，提出图解法，并简要阐述其步骤。

All foofbags are handmade and so you can be assured of the quality and uniqueness.

所有foofbags是手工制作，所以你可以放心的质量和独特之处。

To add diversity and uniqueness to the game, the Hanseatic League does wonders.

要增加分集和游戏方面的独特，汉萨同盟做惊奇。

Further, according to the positity of the Hessian matrix, which is got from the second order adjoint model, the uniqueness of the assimilation result is manifest. And the relationship between the rate of convergence and the frequency of the observation utilization in the assimilation is investigated.

进一步，借助二阶伴随模式所得到的Hessian矩阵，说明同化解是唯一的，并分析了优化算法的收敛速度与同化过程中观测资料使用频率的关系。

In order to reasonably depict four basic problems with friction, one Coulomb friction new form in first Kirchhoff stress is proposed to deal with finite deformation problems, other Coulomb friction form in incremental mode to elastoplastic flow theory; Hilbert function spaces concerning elastoplastical problems with friction are established, so it makes all operations and calculations in the treatise standardized within the scope of reasonably topologic structure; In view of functional extremum, the equivalence between generalized variational inequalities principles in elastoplasticity with friction and corresponding basic problems are testified by inducing Lagrangian multipliers, so it provides a rationally theoretical basis for numerical methods in elastoplasticity with friction; From the viewpoint of variational inequality, the theory of generalized variational inequalities in elasticity and elastoplasticity with frictional constraint is studied, and the uniqueness and existence of the solution of FEM is proofed under the proposed conditions of stress compatibility, and them FEM approximation and a discrete solution are discussed; Based on the principles of generalized variational inequalities in elastoplasticity with friction, direct generalized variational inequalities methods is pretended, which is a natural generalization and development of direct variational methods; Using generalized variational inequalities methods, some examples in metal forming including plane deformation, upset and extrusion are analyzed and the results prove that all the theories and methods in the paper are right, feasible, accurate and advanced.

主要内容有：为了合理地描述金属塑性成形中摩擦约束弹性、弹塑性基本问题，提出和研究了有限变形下以Kirchhoff第一应力表示的Coulomb摩擦定律形式和弹塑性流动理论下以增量形式表示的Coulomb摩擦定律表示形式；系统建立了摩擦约束弹塑性问题的Hilbert函数空间，使本文规范在一个具有合理的代数拓扑结构内进行一切操作和运算；利用Lagrange乘子，从泛函极值的角度系统地阐述和论证了一系列摩擦约束弹性、弹塑性广义变分不等原理与相应的实际问题之间的等价性，它为处理摩擦约束的弹塑性力学数值方法提供了合理的理论基础；从变分不等式的角度出发，阐述了对应于摩擦约束弹性、弹塑性问题的广义变分不等式理论，首次提出了在应力相容性条件下，它的有限元解具有存在唯一性，进而讨论了其有限元近似及离散解法；基于摩擦约束弹塑性广义变分不等式原理，首次提出了直接广义变分不等式方法，这一方法是直接变分法的合理推广和发展；利用直接广义变分不等式方法对金属压力加工中的平面变形问题、镦粗、挤压等塑性成形问题进行了分析计算，验证了该理论和数值算法的正确性、实用性、精确性和优越性。

By using homeomorphism method and the extended inverse function theorem,the existence and uniqueness of the solution for the semi-linear pseudoparabolic equations is obtained.

首先在Hilbert空间中建立了强制不等式，利用同胚方法和抽象的反函数定理，得到了半线性伪抛物方程初边值问题解的存在性和惟一性定理。

The existence and uniqueness of the solution to the equation are verified based on the homeomorphism theory, and an example is given to show the rationality of the solution.

数值求解拟线性抛物型偏微分方程边值问题通常可归结为解非线性方程组，非线性方程组解的存在与惟一性是解方程组的前提。

Homonymous clusters are detected through heartbeat signals and merged by automatic administrative server degradation to keep the uniqueness of clusters.

利用管理服务器心跳信号侦测同名集群，通过管理服务器自动降级合并同名集群，保证集群的单一性。

If I didn't care what anyone thought, I would.....

如果我不介意别人怎么看，我会。。。。

In recent decades, Chile has mandated earthquake-proofing for new structures, requiring that materials like rubber and features like counterweights be built into the architectural designs to allow buildings to bend and sway during temblors rather than break.

在最近数十年里，智利已经为兴建防震的新土建结构而对建筑材料提出要求，需要的材料类似于橡胶，而特性就象运用在建筑设计中的平衡物体，一旦应用以后，当地震发生时建筑就能弯曲摇摆。