唯一性

Although some results on convex and concave iterative roots are known, there are no results about convexity for more general iterative equations. In this chapter, convexity of both increasing solutions and decreasing solutions is investigated by the divided difference theory and fixed point theory.

本章在连续函数构成的紧凸集上构造一个连续自映射算子，利用均差理论和不动点理论证明了线性型迭代方程的凹凸解的存在唯一性及连续依赖性。

This paper considers the moment problem for modules over principal ideal domain containing existence and uniqueness of solution.

研究主理想环上模的矩量问题，包括矩量问题的存在性和唯一性。

Jordan normal form in a complex domain existence and uniqueness of these two important properties, is a powerful tool for problem solving, use of these two properties can effectively streamline the difficulties to obtain the multiplier effect.

Jordan标准形在复数域中有存在性和唯一性这两个重要性质，是我们解题的有利工具，运用这两个性质能有效的简化问题的难度，以取得事半功倍的效果。

Alleged network doorplate, use a group namely 8, 12 arabic numeralses replace original unit address, label of number of every network doorplate all has uniqueness and reliability, once register a success, won't change forever.

所谓网络门牌，就是用一组8—12位阿拉伯数字代替原有的单位地址，每个网络门牌号码标识均具有唯一性和可靠性，一旦注册成功，则永远不会改变。

To be specific,its generalized characteristic polynomial has positive double roots,which we proved further has only a double,root by using the affine transformation and inverse affine transformation.

为了更好地进行干涉判断，根据椭圆-椭圆外切的代数条件——广义特征多项式具有正的重根，以及进一步证明出的该正重根的唯一性结论，利用仿射变换和逆变换方法，推导出了椭圆-椭圆的不适合边界解析方程。

For the infective subsystem, we obtain the existent condition of the subsystem equilibrium point and the uniqueness of the positive equilibrium point by the no infectious subsystem's conclusion and the image analysis. The partial stability of the subsystem equilibrium points is discussed by analyzing eigenvalue. The condition that the system has no limit cycle is obtained by the Dulac function.

对染病子系统，利用无病子系统所得结论及图像分析法，得到了系统平衡点的存在条件，正平衡点的存在唯一性；利用特征根方法判断了系统平衡点的局部稳定性；利用Dulac函数得到了系统不存在极限环的条件；利用极限方程理论得到了系统疾病消除平衡点和地方病平衡点的全局稳定性。

Unique to Earth, plate tectonics created new kinds of physical and chemical environments where minerals could form, and thereby boosted mineral diversity to more than a thousand types.

地球的唯一性就在于板块的运动创造了新的物理化学环境，在这种新的环境中形成了各种各样的矿物。

This solution has no relation with properties of the imaginary isotropic layer, and this is consistent with the uniqueness theorem of elastodynamics.

所得结果和假想层的力学性质无关，符合弹性力学问题的唯一性定理。

Based on a new approach to solve the Electrocardiograph inverse problems,we study the recognition of the myocardial infarction parameters.

心电场逆问题的传统研究方法遇到了理论上的两个困难：逆解的不唯一性与逆问题的固有病态特性。

Different from the case of strict minimal siphons in a net system, the number of elementary ones is bounded by the smaller of place count and transition count. Based on the ideas mentioned above, this thesis proves that the set of elementary siphons is not unique, while different ones may lead to different control results.

本文在此研究的基础上，论证了网系统中的基本信标的不唯一性，控制不同的基本信标可以得到不同的控制效果，进而提出了最优基本信标的概念并给出了相应的计算方法，应用这一计算方法可以在多项式时间内求得一组最优基本信标，也就是说，控制该组基本信标相对于其他的基本信标可以使得系统Petri网模型具有最多的可达状态，这在实际中，意味着系统具有更大的灵活性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。