查询词典 fixed point theorem

The solutions are obtained for both the steady-state case and the developing case by the fixed point theorem and the semi-discretization method.

通过不动点理论结合半离散方法，分别得到定态情形和发展方程解的存在性。

Chapter two mainly considers the periodic boundary value problems for impul-sive differential equations. Some existence results, obtained by the help of Schaeffers fixed point theorem and the method of upper and lower solutions coupled with the monotone iterative technique.

第二章讨论了两类周期边值问题，通过利用Schaeffer不动点定理，上下解方法和单调迭代方法，建立了解存在的充分条件。

The sufficient conditions for guaranteeing the permanence of the system and the existence and uniqueness of periodic solution having globally asymptotical stability are obtained by using the extremum principle,fixed point theorem and V function method s together.

讨论一类具 Holling 类功能反应和放养的捕食链非自治扩散系统，应用极值原理和不动点定理及 V函数法，得到该系统的一致持久性以及存在唯一全局渐近稳定周期解的充分条件。

To our knowledge, this is the first work for the existence of periodic solutions for neutral systems by generalized Schaefer fixed point theorem of seperate contraction mapping.

第四章，讨论了两类依赖于参数的泛函微分系统，用锥上的Deimling不动点定理，证明了系统的正周期解的个数与参数的取值以及非线性项的渐近行为有关。

And the fixed point theorem is also given.

第一节为预备知识和两个重要的定理。

We also proved the space made of mapping of Caristi fixed point theorem is complete .

另外还证明了Caristi不动点定理中对应映射组成的空间是完备的。

As application, a continuous selection and its fixed point theorem are obtained.

作为应用，获得了连续选择及其不动点定理和一个Browder-Fan不动点定理。

In recently years, it has obtained some new results of the fixed point theorem and applications for nonlinear operators.

人们运用半序方法和拓扑度理论研究算子的不动点的存在唯一性，及多个不动点的存在性和存在范围。

Local existence is proved by using a fixed point theorem.

本文利用不动点定理证明了局部解的存在性。

Since they are based on Banach fixed point theorem to construct the local solution.

这两种方法都是用Banach不动点定理构造局部解。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。