查询词典 discrete group

The rational points of an elliptic curve forms an additive group. The discrete logarithm problem of this group is called elliptic curve discrete logarithm problem.

椭圆曲线上的有理点会形成一个加法群，此加法群上的离散对数问题称为椭圆曲线离散对数问题(elliptic curve discrete logarithm problem)。

We know that the algebraic limit G of discrete group sequence 〓may be nondiscrete even with the condition that G is nonelementary.

其次，我们给G加以适当的条件，也得到了〓变换群集〓的上述结果。

The basic idea is to set a continuous solution of the region with a finite number of discrete points instead of a grid consisting of, these discrete points called grid nodes the solution of a continuous area on a given function of continuous variables used in the definition of discrete grid variable function approximation the original equation and boundary conditions in the micro-business operators to approximate differential, integral with the points and to approximate, so the original differential equations and boundary conditions are replaced by algebraic equations near Side, that is, finite difference equations , solve this equation group can get the original problem in discrete points on the approximate solution.

基本思想是把连续的定解区域用有限个离散点构成的网格来代替，这些离散点称作网格的节点；把连续定解区域上的连续变量的函数用在网格上定义的离散变量函数来近似；把原方程和定解条件中的微商用差商来近似，积分用积分和来近似，于是原微分方程和定解条件就近似地代之以代数方程组，即有限差分方程组，解此方程组就可以得到原问题在离散点上的近似解。

In chapter 1, we introduce some background of the dynamical system of discrete group actions and the main results in this thesis.

第一章，介绍了离散群作用动力系统的一些背景及本文的主要结论。

In a TDMA system, a discrete group of digits transmitted by a single ''.

在时分多址系统中，由地面站传送的一个分立数字组。

This thesis is concerned with the dynamics of discrete group actions, especially we are interested in Zd actions.

本文考虑离散群尤其是Z~d作用的动力性质。

Who feels closest to the brand - a discrete group, or a wide range of people?

哪些人与品牌最接近？部分人群还是广泛的人群？

The court concluded that "urely Congress did not intend to prohibit the President from seeking specialized advice and while one may speculate that different choices might have been made to accomplish the President's objective the simple gathering of a discrete group of experts in a particular narrow field is not in itself enough to render such an advisory committee unbalanced in the sense of FACA".

法院的结论是"当然国会并不打算禁止总统获得专业化的建议，而有人可能揣测只要把该特定狭窄领域一群独立的专家集合起来，可能就会做出不同的选择，以实现总统的目标，但从联邦咨询委员会上看，这不足以就认为这样一个咨询委员会是不均衡的"。

The fourth chapter,the fifth chapter,the sixth chapter and the seven chapter aremain parts of this paper.we first discuss the relation of multiplicative unitary operatorscorresponding to compact quantum group and the cross product by a discrete group.

第四、五、六、七章是论文的主要部分。

Providing new insights into classical results and opening avenues for further applications, the book then uses representation-theoretic techniques-especially induction theory-to examine equivariant higher algebraic K-theory, their relative generalizations, and equivariant homology theories for discrete group actions.

提供更进一步的应用的新对古典结果和开的大街了解，书然后使用代表理论技术特别是就职理论检查equivariant高代数学K 理论，他们有关概括，和equivariant 相同理论适合分离的组行动。

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。