eigenproblems造句
例句与造句
- in this paper, we consider the subspace iteration method for solving large symmetric eigenproblems
本文研究求解大型对称矩阵特征值问题的子空间迭代法。 - in order to get a finite element formulation to analyze singular heat flux fields, the weak form of basic equations and boundary conditions describing the 2d heat conduction eigenproblems is derived for the sectorial domains in the vicinity of the interfacial crack tip
摘要为得到用于分析奇异热流密度场的高效的有限元列式，针对不同材料中界面裂纹尖端的扇形区域，推导出二维热传导特征解问题的基本方程和边界条件的弱形式。 - to some eigenproblems, the corresponding ritz vectors always converge very slowly even sometimes do n't converge when ritz values have converged . so in order to improve the convergence of ritz vectors, firstly, refining-strategy is applied to the davidson method in this paper . the process restarts with the refined ritz vectors as the initial vectors, and then we get the refined block davidson method
为了改善ritz向量的收敛性，本文首先在块davidson方法的执行过程中，运用精化策略，求出相应的精化向量并将其作为初始向量进行重新开始过程，由此得到了精化块davidson方法，并对精化块davidson方法进行了收敛性分析；其次，本文将精化块davidson方法结合收缩技术，提出了收缩的精化块davidson方法。 - and in the second part, we consider the following four inverse eigenproblems : the reconstruction of normal five-diagonal matrix by two or three ordered eigenvalues and corresponding eigenvectors, and the reconstruction of real symmetric tridiagonal matrix and irreducible real symmetric tridiagonal matrix by three eigenvalues and corresponding eigenvectors, some sufficient conditions for existence of unique solution to the problems are given here, and some necessary and sufficient conditions for the existence of both unique solution and solution ( not unique ) to the latter are also given
第二个部分则讨论四类矩阵逆特征值问题：在考虑给定的两个或三个特征值次序的情况下构造唯一的规范五对角线矩阵：由三个给定的特征值和相应特征向量来构造唯一的实对称三对角线矩阵和不可约实对称三对角线矩阵。文章中给出了前者有唯一解的充分条件以及后者有唯一解和有解(不唯一)的充要条件，并且分别给出了其中唯一解的表达方式。 - It's difficult to find eigenproblems in a sentence. 用eigenproblems造句挺难的