查询词典 triangular factorization

Nest algebras are the natural generalizations of upper triangular matrix algebras in infinite dimensional spaces and an important object...

套代数是上三角矩阵代数在无穷维空间上的自然推广，是一类重要的非自伴算子代数。

Nest algebra is an important class of non-selfadjoint reflexive operator algebras, which is the natural generalization of upper triangular matrix algebra in infinite dimensional space.

中文摘要：套代数是一类重要的非自伴、自反算子代数，它是上三角矩阵代数在无穷维空间上的自然推广。

To seek new infinite sequence exact solutions to nonlinear evolution equationsNEE(s, the formula of nonlinear superposition of the solutions of the second kind of elliptic equation are given, infinite sequence exact solutions to combined KdV with varible coefficients and forcible term is constructed with the aid of symbolic computation system Mathematica, which include Jacobi-like elliptic function solutions, infinite sequence soliton-like solutions and infinite sequence triangular function solutions.

为了获得变系数非线性发展方程的无穷序列精确解，给出第二种椭圆方程解的非线性叠加公式，借助符号计算系统Mathematica构造了带强迫项变系数组合KdV方程的无穷序列精确解。这里包括无穷序列类Jacobi椭圆函数解、无穷序列类孤子解和无穷序列三角函数解。

Based on the return2calculating sequential conditional least-squares technique and the upper-triangular Cholesky decomposition algorithm, a new approach to resolve GPS carrier phase integer ambiguity solution , which is referred as Return-Calculating LAMBDA approach , has proposed in this paper.

基于回代解算的序贯条件最小二乘技术和上三角的Cholesky分解算法，提出求解载波相位模糊度的一种新算法——回代解算的LAMBDA方法。

A set of analytical integral method of triangular element linear interpolation BEM has systematically been deduced and put forward.

提出并系统推导了一套三角形线性插值边界元的解析积分公式。

When the formulas of the tetrahedral element are developed, triangular coordinates is used to develop the boundary integral part of outer boundary element.

其中针对四面体单元的第二、第三类边界条件采用面积坐标积分变换法详细推导了边界积分项的计算过程。

The method that combines the effective - field renormalization group with the discretized path - integral representation is extenged to study phase transition of the transverse Ising model in a quantum - spin system on the plane triangular lattice.

将离散路径积分表示下的有效场重整化群技巧推广应用于平面三角晶格上量子自旋横向Ising模型的相变研究，在这个方法中，注意区分了两种具有相同配位数而不同几何构形的晶体，并且考虑了起伏的影响，在二阶累积量近似下，得到了接近于精确解的临界值。

A new technique is presented here consisting of reconstruction of the radial head, leveling of the distal radioulnar joint, reconstruction of the central band of the interosseous membrane by using a pronator teres rerouting technique, and finally repair of the triangular fibrocartilage complex.

这里介绍一种新的技术，它包括：桡骨头的重建，远端桡尺关节的校准，用旋前圆肌代替技术重建骨间膜的中心联合腱，最后是三角纤维软骨联合体的修补。

The purpose of the proposed research study is to find a series of nodal sets for polynomial interpolation in a triangular domain.

本研究主题的目的是要寻求一系列适合在三角形区域使用多项式内插的节点。

Leaves with petiole 0.5-2 mm; blade narrowly triangular-lanceolate, 2.5-5.8 × 0.7-2.3 cm, thickly papery, abaxially ± densely glaucous; laminar glands long to short streaks; abaxial glands rather sparse; main lateral veins 2- or 3-paired, all branches clearly visible and forming undulating intramarginal vein, tertiary reticulation nearly invisible; base cuneate, apex acute to subacute.

叶具叶柄0.5-2毫米；叶片狭三角形披针形， 2.5-5.8 * 0.7-2.3 厘米，厚纸质，背面多少密被白霜；片状的腺长到短条纹；背面的腺体相当稀；主要侧脉2-或3对，全部的分枝明显可见的并且形成波状近边缘内脉，近看不见的第三级网脉；基部楔形，先端锐尖到近尖。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。