This paper is devoted to solving linear saddle point problems, Specifically, We consider nonsymmetric systems, written as usual in block form, where the upper left block is an invertible linear operator with positive definite symmetric part. Such saddle point problems arise, for example, in certain finite element and finite difference discretizations of NavierStokes equations, Oseen equations, and mixed finite element discretization of second order convection-diffusion problems.

中文題名求解鞍點問題的迭代方法副題名外文題名論文作者馮麗紅導師曹志浩教授學科專業(yè)計算數(shù)學研究領(lǐng)域\研究方向?qū)W位級別博士學位授予單位復旦大學學位授予日期2002 論文頁碼總數(shù)87頁關(guān)鍵詞鞍點問題迭代方法網(wǎng)格離散線性方程組館藏號BSLW /2003 /O241 /15 論文針對鞍點問題的求解分析了一些典型的快速算法高清无码在线观看。

At last the consistently symmetrical and positive definite properties between the energy matrices and the elastic matrices are clarified by using the theory of positive definite quadratic form of matrices.

最后，運用矩陣的正定二次型理論闡述了"能量矩陣與彈性矩陣"之間一致的對稱性和正定性麻豆精品在线免费。

The physical meaning of the dynamical equilibrium relationships, velocity space-time distribution and energy propagation involved in the energy matrices can be described by the positive definite quadratic form of the energy matrices.

能量矩陣蘊含的動態(tài)力的平衡關(guān)系在线观看十八以上禁止观看、速度的時間_空間分布和能量的傳播及變化的物理意義，能夠從能量矩陣的正定二次型特性表述出來中文字幕欧美日韩人妻啪啪。

The second part includes the definition of positive definite function and conditional positive definite function, the basic form of Radial Basis Function interpolation, the correctness of the inversion of the interpolation matrix, the error estimate based on Kringing function.

主要包括徑向基函數(shù)的相關(guān)定義国产黄片在线免费，基本的插值形式，插值矩陣的可逆性白白色视频在线发布，以Kringing范數(shù)為基礎(chǔ)的徑向基函數(shù)插值的局部誤差估計和徑向基函數(shù)插值邊界附近的情況国产AV激情无码久久小说。

The relation between the output phase differences and the losses of 2×2 and 3×3 optical fiber couplers with rotatory symmetry is deduced in this study, which is based on the characteristics of scattering matrix and Hermite positive definite quadratic form of the couplers.

前 言光纖耦合器用于諸如光纖干涉系統(tǒng)、光纖環(huán)久久免费视频观看二、波分復用器件和光纖通信中的分集接收等場合時黄页视频网址，除了要求適當?shù)妮敵龉β时纫酝猓行杩紤]輸出端光場間的相位關(guān)系［1～3］全网免费一级毛片。

optical fiber coupler, scattering matrix ; output phase difference; Hermite quadratic form ; positive definite matrix

利用其散射矩陣為酉矩陣的么正性不難證明欧美视频v，2×2耦合器輸出相位差恒為90°，與輸出功率比無關(guān)欧美亚性爱大片，而耦合區(qū)具有旋轉(zhuǎn)對稱結(jié)構(gòu)的3×3耦合器的輸出相位差完全取決于輸出功率比国产精品亚洲综合一区在线观看，特殊地，當?shù)确止β瘦敵鰰r女人18毛片A级毛免费，輸出

If A is a symmetric positive definite matrix, then the quadratic form x~ TAx can be written as a sum of squares. Equivalently, A is a sum of rank one matrices VV~T.

若A是對稱正定矩陣黄网免费直接观看，則二次型x~ TAx 能寫成平方項的和，即A是秩為1的矩陣VV~T的和国产在线观看三级片。