查询词典 algebraic equation

Our work involves the theories of numerical analysis, matrix computation, abstract algebra, control theory and algebraic Riccati equation.

课题的研究涉及到数值分析，矩阵计算，抽象代数，控制论等重要学科。

The thesis studies the formation of several basic algebraic terms such as "algebra","equation" in the book of Elements of Algebra and Algebra.

本文的研究表明，术语与其所表述的数学内容之间的差异反映当时数学术语在翻译时不能保证单义性和系统性。

In this paper, we investigate the problem of the existence of transcendental meromorphic solutions of a type of algebraic differential equation and obtain a result.

讨论了一类代数微分方程的超越亚纯解的存在性问题，得到了一个结果。

Which consists of three ordinary differential equations and one algebraic constraint equation.

最后对一个实例作了数值分析，其计算结果与实验数据得到了较好的符合。

Method of Moment is a method which can discretize continuity equation into algebraic equations, and it is one of the most popular methods in analyzing the electromagnetic radiation and scattering problems.

矩量法是一种将连续方程离散化为代数方程组的方法，是分析电磁散射与辐射题目最流行的算法之一。

And the methods how to combine them with the discretized algebraic eigenvalue equation for generalized Rayleigh and Love waves are also given.

推导了这三种边界条件的公式，并且给出了它们进入离散化后的Rayleigh波与Love波的代数特征方程方法。

Based on a modified algebraic Riccati equation, this paper provides the conditions for the existence of the previous performance robust controllers.

基于一个修正的代数Riccati方程，给出了上述性能鲁棒控制器的存在条件及解析表达式，并举出相应的数值例子，以说明本文设计方法的简单性与直接性。

In this chapter,we will give the relation between attainability of this LQ problem and the stabilizing solution of one kind of algebraic Riccati equation.

我们给出了这类二次最优控制问题的可达性和一类代数黎卡提方程的稳定解之间的联系。

Based on a chosen normalized boundary equation, a new normalized boundary equation can be established such that the irregularity of the kernel of integral equations is overcame. Finally, natural frequency is obtained by the existence condition of nontrivial solution of the discrete algebraic equations derived from the integral equations.

边界方程有多种选择，在选定一种边界方程的基础上，可以通过建立一个新的边界方程来表示问题的边界，以克服积分核的奇异性；最后由积分方程的离散化方程组有非平凡解的条件，求得固有频率。

The "compressed sparse row data format" is adopted to save storage and the "mode multiplication" is used to improve the computation efficiency, so that the finite integration equation is obtained with low storage and high efficiency. To solve the finite integration equation, which is a large-scale sparse algebraic eigenvalue problem under the condition specified, the Krylov subspace iteration method is introduced and the shift-invert Arnoldi method is proposed to exclude the unphysical static electro-magnetic solution and get the needed eigensolution around the specified eigenvalue.

采用"行索引稀疏格式"压缩存贮技术节约内存，采用大型稀疏矩阵的模式乘法，提高矩阵计算效率，高效获得了离散电场分量满足的有限积分方程；针对有限积分特征方程的求解，论文介绍了大型稀疏矩阵Krylov子空间迭代方法，并提出了位移求逆Arnoldi算法，以排除非物理的静态电磁场解，获得指定频率附近的特征值。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。