positive definite matrix 中文意思是什麼
positive definite matrix
解釋
正定矩陣-
The new method of judgement for matrix positive definite in euclid space
空間中矩陣正定性判別的新方法 -
We make the following assumption for when 2 is positive definite matrix, different estimators about matrix of regression coefficients and inefficiency of least squares estimate have been discussed in many documents. considered 2 is nonnegative definite matrix, this thesis derives best linear unbiased estimate of parameter matrix b and estimable parameter function kbl under the meaning of matrix nonnegative definite and the property of maximum probability of blue is investigated. next, we discuss some necessary and sufficient conditions of the equality of the lse and blue, then we derive the estimation of the deviation bet - ween the least squares and the best linear unbias estimators of the mean matrix, meanwhile a relative efficiency of lse ofb is proposed and its bound is given
當0時，眾多文獻討論了回歸系數陣的各種估計及lse的有效性，本文考慮了當0的情形，給出了回歸系數陣b及其可估參數函數kbl的在矩陣非負定意義下的最優估計（ blue ） ，研究了它的一個最大概率性質，並且討論了最小二乘估計成為最佳線性無偏估計的充分必要條件，在此基礎上給出了均值矩陣的最小二乘估計與blue的偏差估計，定義了lse相對于blue的一個相對效率，並給出了它的界。 -
For the given sample points, and matrix formed by covariance function with sample points as parameters, when the number of sample points approaches infinite, it is proven that this matrix spectrum will approach the spectral approach theorem for positive - definite kernel of integral equation
對給定的樣本點，由樣本點為變量的協方差函數構成的矩陣，當樣本點個數趨于無窮大時，證明此矩陣譜逼近於積分方程正定核的譜逼近定理。 -
By analyzing and studying the dynamic characteristic of the minehunting sonar array, the author points out that the minehunting sonar array posture control system is a non - linear and intense coupling dynamic system. according to characteristics of the common inertia matrix, the author testifies that the inertia matrix of the minehunting sonar array has many dynamic characteristics such as the limited boundary quality, the symmetry quality and the positive definite quality
對獵雷聲納基陣的動力學特性進行分析研究，指出了獵雷聲納基陣控制系統為非線性、強耦合的動力學系統；從一般的慣量矩陣特性入手，證明了獵雷聲納基陣的慣量矩陣具有有界性、對稱性及正定性等動力學特性。 -
With the method, all integrals can be easily fulfilled on regular sub - domain boundaries, and to impose the essential boundary conditions, a penalty parameter can be used so that a positive definite and symmetric stiffness matrix may be obtained
計算中，積分都在規則形狀邊界子域上完成，因而容易實現；通過罰因子添加本質邊界條件，從而使得到的剛度矩陣是正定對稱矩陣。 -
When the covariance matrix formed by securities yields is positive definite, we provide the model with transaction costs, the risk is b index risk, researching the model under short sale and no short sale separately
在證券收益率之間的協方差陣為正定矩陣時，給出了以值風險為風險指標的含有交易費的證券組合投資模型，並分別在允許賣空和不允許賣空兩種情形下進行了討論。 -
Some properties of adjoint matrix are discussed. the properties are symmetry, antisymmetry, positive definite, positive semi - definite, orthogonal and characteristic value
摘要討論了伴隨矩陣在對稱、反對稱、正定、半正定、正交、相似和特徵值等方面的性質。 -
Further extended is the definition of the positive definite matrix. thus obtained is the non - symmetrical generatized positive definite matrice and some of its results
摘要對常規的正定矩陣的定義進行了再推廣，由此得出非對稱的廣義正定矩陣及一些結果。 -
Finally, when the decomposition is proceeding to a symmetric positive definite matrix, the pivot may be very small or even negative. there provided several methods to overcome this shortcoming. ( 2 ) for the block strictly diagonally dominant matrices, there proved the existence and uniqueness of the block lu decomposition and the existence of the incomplete version
（ 2 ）證明了嚴格塊對角占優矩陣塊lu分解的存在唯一性與塊不完全lu分解的存在性，以及嚴格塊對角占優矩陣與不可約塊對角占優矩陣的塊jacobi 、塊gs ，塊sor 、塊ssor等基本迭代法的收斂性。 -
A method of application positive definite matrix to distinguish minimax value of bidifferentiable function
一種用矩陣的正定性判別二階可微函數極值的方法 -
Results linear complementary problem have unique solution when m is generalized positive definite matrix
結果得到了當m是廣義正定矩陣時，線性互補問題存在唯一解。 -
In this paper, we ' ll give another simple method to seek normal orthogonal basis by using the properties of positive definite matrix
摘要利用正定矩陣的性質，得到標準正交基的另一種較簡單的求法。 -
Aim to solve question about the existence and uniqueness of the solution for linear complementary by using generalized positive definite matrix
摘要目的解決用廣義正定矩陣來判別線性互補解的存在唯一性問題。 -
Based on them, some properties of the coefficient matrix a are presented when the matrix equation has a positive definite solution
根據這兩個定理，當矩陣方程有對稱正定解時，給出了系數矩陣 -
If the proper parameter is chosen, the linear pek method is superior to the linear pe method. ( 2 ) in order to improve the linear pe method and the linear pek method, the quadratic pe method and the quadratic pek method are put forward. then the solvability and the convergence of the two methods are discussed about the hermite positive definite matrix and m - matrix, and the interrelated conclusions are obtained
（ 2 ）將一次pe方法和一次pe _ k方法改進為二次pe方法和二次pe _ k方法，討論了當系數矩陣a為hermite正定矩陣和m -矩陣時，二次pe方法和二次pe _ k方法的可解性和收斂性等問題，得到了相關的結論。 -
( 2 ) on the results of new quadratic pek method, the quadratic epek method is discussed. the convergence of the quadratic epek method is proved in hermite positive definite matrix. then the condition of hermite positive definite matrix is extended to the condition of the positive - definable matrix
（ 2 ）在新型二次pe _ k方法的基礎上，討論了新型二次pe _ k方法的外插迭代二次epe _ k方法的收斂性，證明了當系數矩陣為對稱正定矩陣時二次epe _ k方法的收斂性，並將在正定矩陣條件下收斂的情形推廣到了可正定化矩陣的情形。 -
Properties of positive definite complex matrix
關于正定復矩陣的一些性質 -
The research on positive definite complex matrix
半正定復矩陣的研究 -
When a common positive definite matrix can not be found to design fuzzy model - based controller, the improved adaptive reconfigurable control scheme based on fuzzy model and neural network is proposed
同時，當現有的基於模型的模糊控制器無法求解時，文中給出了一種改進的基於模糊模型和神經網路的自適應重構控制方案。 -
If a symmetrical matrix is positive definite, the determinants of all its minors are also positive.
如果對稱矩陣是為正定者，它的所有子式的行列式也都是正的。
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