positive definite 中文意思是什麼
positive definite
解釋
正定的-
On dx - generalized positive definite matrices
廣義正定矩陣 -
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 -
Negative matrices over a c - algebra and geometric mean of two positive definite elements
代數上的非負矩陣與正定元的幾何平均 -
A new method on the decision of positive definite quadratic form using the real square matrices
利用實方陣判定二次型正定性的新方法 -
The classification of positive definite unimodular lattices over
上正定幺模格的分類 -
On the classification of positive definite unimodular lattices over z
上的正定幺模格的分類 -
Positive definite even unimodular lattices over real quadratic integer rings
實二次整數環上的正定偶幺模格 -
Irreducible positive definite function on unimodular group and its applications
幺模群上的不可分解正定函數及其應用 -
On the classification of positive definite unimodular lattices over the rings of real quadratic integers
實二次代數整數環上的正定幺模格的分類 -
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。 -
We proof the covariance function of covariance stationary processes is equivalent with mercer kernel function. that is, the covariance function of covariance stationary processes is a mercer kernel function ; in reverse, for a given mercer kernel function, there exists a covariance stationary processes, and the covariance function corresponded to this covariance stationary processes is the given symmetry positive - definite kernel function. it means that the covariance function is equivalent to symmetry positive - definite kernel function
首先建立了協方差平穩過程的協方差函數與積分方程中對稱正定mercer核函數的等價關系，即協方差平穩過程的協方差函數是對稱正定mercer核函數，反過來，對給定的對稱正定核函數，證明了存在協方差平穩過程，使得此協方差平穩過程對應的協方差函數恰好為給定的對稱正定核函數，這說明協方差函數和對稱正定核函數是等價的。 -
Lots of concrete examples are (, ) - metrics. and one of fundamental problems in finsler geometry is to find and study finsler metrics with constant ( flag ) curvature. on the basic, we majarly study the following problems in present paper : ( a ) to the property of a class of (, ) - metrics in which is parallel with respect to riemann metric a and riemann metric a is of constant curvature, we obtain the following theorem4. 3 let f (, ) be a positive definite metric on the manifold m ( dimm > 3 )
在finsler幾何中，我們現在已知的finsler度量已經很多了，但大多數具體的例子主要都集中在（ ， ） ?度量中，又在finsler幾何中一個基本的問題就是去發現和研究具有常曲率的finsler度量，基於這些本文主要研究了以下一些問題： （ a ）一類關於是平行的並且riemann度量具有常曲率的（ ， ） ?度量的特殊性質，得到了如下的定理4 -
Estimates for eigenvalues of positive definite operators in l2 spaces
的本徵值估計 -
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。 -
In this paper it is shown that a partial toeplitz pattern has a toeplize positive definite completion if and only if the diagonals for the specified entries are 0, t, 2t, . ., pt ( in which the main diagonal is numbered 0 )
本文討論部分toeplitz正定陣的toeplitz正定完成問題，證明了一個部分正定toeplitz模式存在正定toeplitz完成的充分必要條件是已知元所在對角線的標號成等差數列。 -
Characteristic theorem of positive definite quadratic form and its program
淺談一條箕舌線的非正態性 -
The title is intimidating, but chapter 3 is easy to read and contains a lucid introduction to positive definite functions
不要被書名嚇到了，其實書里的第3章非常容易閱讀而且對正定函數也有很明確的解釋。 -
Pre - symmetry regularized method for positive definite symmetrizable system of linear algebraic equations
關于正定可對稱化線性代數方程組的預對稱正則化演算法 -
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。
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