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- This paper proves some Hadamard inequalities from the qualities of positive definite quadratic form. 摘要利用正定二次型的性质，给出阿达马不等式的证明。
- negative definite quadratic form 负定二次型
- positive definite quadratic form 正定二次型
- Norm of a Linear Functional for a Positive Definite Quadratic Form 线性泛函在正定二次型下的范数
- Characteristic theorem of positive definite quadratic form and its program 正定二次型的刻划定理及其程序
- Negative Definite Quadratic Form and Negative Semidefinite Quadratic Form 负定二次型与半负定二次型
- A non-equality and its proof based on positive definite quadratic form 基于正定二次型的一个不等式及其证明
- A New Method on the Decision of Positive Definite Quadratic Form Using the Real Square Matrices 利用实方阵判定二次型正定性的新方法
- The significance of seismic wave field equations matrices and the energy positive definite quadratic form 地震波的场方程矩阵和能量的正定二次型及其意义
- The Judgement for Crystal Stability of Phase in Positive Definite Quadratic Form 用二次型的正定性判断晶体相稳定性
- definite quadratic form 定二次形式,定二次型
- Positive Definition and Negative Definition Quadratic Form Condition of 二次型的条件正定与条件负定
- The necessary and sufficient conditions for the existence of admissible nonnegative definite quadratic estimates,biased and unbiased,are given. 在可容许估计的完全类中;还讨论了非负参数函数的非负估计问题;给出了可容许的非负定估计存在的充要条件.
- When A is a nonnegative definite matrix with finite maximum eigenvalue, the strong convergence of random quadratic forms is established under finite fourth moment. 当A为非负定矩阵且其最大特征根有限,随机变量存在有限的四阶矩情形下,获得了二次型的强收敛。
- The total input power flow is expressed in an equation of Hermitian quadratic form as the objective function. 将构造结构总的输入功率流为二次型函数作为控制目标函数,利用哈密尔顿二次型最小值理论给出最优控制力前馈控制表达式。
- By means of the condition of positive semidefinite of a quadratic form, the location of the tool-axis can be acquired. 传统的数控加工均采用球头刀具,由于刀具与被加工曲面间为点接触,加工精度和效率都较低。
- Given a response surface equation in quadratic form, the Six Sigma Black Belt will be able to compute the stationary point. 给出一个二次方程式形式的响应曲面公式，6西格玛黑带应能计算出驻点。
- We can customize products according to users'requirements: disk, cylinder, quadratic form, ring, sector and some other special shaped magnets. 各种材料制成的圆片、圆柱、方、环、扇、异等形状系列永磁元件。
- The absolute stability of a class of indirect control systems by applying the theory of Hermitian quadratic form and Jordan normal form was studied. 利用厄米特二次型和若当标准形理论研究了一般间接控制系统的绝对稳定性问题，给出了绝对稳定性的代数形式的判别准则。
- With the theory of quadratic form, this essay gives out another way to solve the extremum problems of multi-variable functions. 摘要文章以二次型理论为依据，提出了解决多元函数极值问题的另一种方法。
