离散问题

Homogeneous Markov chain ; embedding problem ; bistochastic matrix ; discrete skeleton

齐次马氏链；嵌入问题；双随机矩阵；离散骨架

The initial-boundary value problem for hyperbolic equation in one-dimensional domain with moving boundary is studied. The discrete time finite element approximation is suggested, and its stability is proved.

研究了具有变动边界的一维区域上的双曲型方程的初边值问题；提出一类全离散有限元逼近格式，并证明了格式的稳定性。

In the second part, we study the problem of output feedback control for a class of discrete-time uncertain systems with Hyperbolic models.

第二部分：研究了一类基于双曲正切模型的不确定参数具有范数有界形式的离散系统的输出反馈的鲁棒镇定问题。

In 1989, Neal Koblitz proposed the hyperelliptic curve cryptosystems as a natural generalization of ECC. HCC is based on the discrete logarithm problem on the Jacobian of hyperelliptic curves over finite fields.

作为椭圆曲线的一个推广，Neal Koblitz在1989年提出了超椭圆曲线密码体制，它是基于有限域上超椭圆曲线的Jacobian上的离散对数问题。D。

In 1989, Neal Koblitz proposed the hyperelliptic curve cryptosystems as anatural generalization of ECC. HCC is based on the discrete logarithm problem on theJacobian of hyperelliptic curves over finite fields.

作为椭圆曲线的一个推广，Neal Koblitz在1989年提出了超椭圆曲线密码体制，它是基于有限域上超椭圆曲线的Jacobian上的离散对数问题。D。

The Weil Descent's algebraic method for DLP in the Jacobian of hyperelliptic curves which generalized by Galbraith is analyzed, and the problem of whether or not the Weil Descent'method can be used to attack the HCDLP with the form of y〓+xy=f defined over GF is discussed in detail.

研究了Galbraith提出的对超椭圆曲线的离散对数问题的WeilDescent代数攻击方法，对定义在GF上的形如y〓+xy=f的HCDLP能否用Weil Descent代数方法攻击作了详细讨论。

An example is applied to show the stability of hybrid systems could be analyzed by using multiple Lyapunov function when the switching hypersurface becomes sliding mode.

针对由离散事件监控连续动态系统的这一类混杂系统稳定性问题，首先分析了多Lyapunov函数方法己有结果的不足，用一个算例来说明切换超平面成为滑动模时，基于多Q叩unov函数方法，并不能证明混杂系统的稳定性。

Under these coordinate systems, the algorithms that translate hexagonal grid cells from an unfolded icosahedron to a sphere were put forward.

球面离散网格模型是管理海量数据的有效途径，如何构建球面网格是这类模型的基础问题。

According to the theory of extreme value of independent and identically distributed random variables, the reliability of external unbonded presertressed concrete structures is discussed.

论文讨论了体外筋面积的变化对体外预应力梁可靠度的影响，将其离散化为多个正态分布的随机变量，并根据独立同分布随机变量的极值理论，讨论了体外无粘结配筋对结构可靠度的影响问题。

Infinite-dimensional optimization studies the case when the set of feasible solutions is a subset of an infinite- dimensional space, such as a space of functions.

组合优化问题是有关的一套可行的解决办法是离散或可归结为一个独立的一个。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。