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- Finally, we extend the support theory of symmetric positive definite matrices to general (including indefinite and nonsymmetric) matrices. 最后，我们将适用于对称正定矩阵的支撑理论推广到一般的矩阵(包括不定的和非对称的矩阵)。
- This paper is concerned with the problem of real symmetric positive semidefinite matrix pencil under spectral restriction. 本文讨论谱约束下实对称半正定矩阵束的最佳逼近问题，指出一般算法。
- Furthermore, if F(x) is B -differentiable at a solution x * of F(x) =0 and BF(x* ) is symmetric nonsingular (BF(x* ) is symmetric positive definite for DFP method), q-superlinear convergence is proven for PSB and DFP methods. 若更进一步假设F(x)在解x~*处是B可微的(即BF(x~*)存在),且BF(x~*)对称非奇异(对DFP方法还需假设BF(x~*)正定),还证明了PSB方法及DFP方法的q~-超线性收敛性。
- In Chapter 2, a sort of parallel multisplitting methods for solving consistent singular symmetric positive semidefinite linear system is presented using analogously diagonally compensated reduction. 在第二章中，利用类似于对角补偿约化的方法[2]，我们给出了求解奇异相容对称半正定线性方程组的一类并行多重分裂迭代方法。
- An algorithm for solving linear equations, the paper shown strong Stability algorithms on the class of non-singular symmetric matrices and on the class symmetric positive definite matrices. 摘要关于线性方程解的算法方面，本文在对称非奇异矩阵类和对称正定矩阵类上给出了强稳定性算法。
- Support theory is a mathematical framework to analyze extreme eigenvalues and condition numbers of preconditioned systems and is developed with symmetric positive definite (spd) systems at first. 支撑理论是一个用于分析预处理方程组的最大(或最小)特征值和条件数的 代数架构，它最初产生于对称正定的线性方程组。
- The wood is held in position by a clamp. 木头用钳夹固定住了。
- The girl is quite suited for the position [work]. 这姑娘很适合担任这个职务[这个工作]。
- I can live in clover when I get that position. 我得到那个职位便可过上优裕的生活。
- He bribes his leader to consolidate his position. 他贿赂他的领导来巩固他的地位。
- He took up a radical position on this issue. 他对这个问题抱着激进的态度。
- part symmetric positive semidefinite matrix 部分对称半正定矩阵
- She is unfit for such a senior position. 她不胜任这种高级职务。
- They plotted the new position of each vessel. 他们标明每艘船的新位置。
- real symmetric positive definite matrix 实对称正定矩阵
- He was exalted to the position of general manager. 他被提升到总经理的职位。
- We're now in a rather poor bargaining position. 我们现在所处的谈判地位不太有利。
- Symmetric positive definite matrix 对称正定矩阵
- symmetric positive definite solution 对称正定解
