查询词典 inverse value

By using the graph-theoretic method, the completion problems for a partial inverse Mmatrix with any order are discussed when its corresponding graph of the partial inverse M-matrix is a 2-chordal graph .

本文采用图论的方法对任意阶部分逆M矩阵，当其对应的图为2-弦图时，研究了其逆M矩阵的完备问题。

In this chapter, we show that Perron complements of N_0~2-matrices are N_0~2-matrices. We also demonstrate the Perron complements of inverse N_0~1-matrices are inverse N_0~1-matrices with certain restriction.

第四章研究非严格广义双对角占优矩阵的Schur余的性质，对角占优矩阵是数值计算中经常遇到的一类矩阵，它的Schur余可应用于迭代法的构造。

The method comprises the steps: S402: an inverse process multiplexing for a terminal to transmit channels; S404: CRC verifies a statistical module and judges whether CRC verified calculation in the inverse process is right and after relevant processing is taken according to the results of the judgment, the right circumstances in the CRC verification in the reverse process are added up; S406: the terminal outputs the link quality of the transmission channels according to the stastical results of the verified statistical module in the CRC; S408: RNC sends out request message for counting, and the terminal makes response to the counting in pre-set conditions and feedbacks the link quality of the transmission channels; S410: after receiving the counting response of the preset quantity, the RNC counts the link quality given feedback by the terminal and confirms whether to regulate power allocation of the signal channel loading MBMS according to the statistical results.

本发明提供了一种采用外码增强技术反馈链路质量的功率分配调整方法包括：S402，终端进行传输信道复用的逆过程；S404，CRC校验统计模块判断逆过程中的CRC校验计算是否正确，并且在根据判断结果进行相关处理后，统计逆过程中CRC校验的正确情况；S406，终端根据CRC校验统计模块的统计结果输出传输信道的链路质量；S408，RNC发送计数过程请求消息，并且终端在预定条件下响应计数，并反馈传输信道的链路质量；S410，RNC在接收到预定数量的计数响应后，统计终端反馈的链路质量，并根据统计结果确定是否调整承载MBMS的信道的功率分配。

We obtain some neccessary and sufficient conditions of reverse order laws for g-inverse and reflexive g-inverse of matrix products on an arbitrary skew field.

获得了任意体上矩阵乘积的g一逆和自反g-逆的反序律的充分必要条件。

Based on the research of some recent algorithms work of the initial solution estimation of inverse simulation approach,an improved algorithm,named projecting and averaging linear deformation method,is presented,which enables the inverse approach more stable and improves its convergence greatly.

初始解的确定是板料冲压成形有限元反向分析中的一个重要环节，初始解的好坏会影响后续计算的收敛性以及分析计算的效率。

And the sufficient and necessary conditions are obtained and the uniqueness of T is discussed and an algorithm for solving the inverse problem is provided. The other kind of structure inverse eigenvalue problem is for unitary Hessenberg matrices with positive subdiagonal elements. That is, a unitary Hessenberg matrices with positive sub-diagonal elements can be constructed when its eigenvalues and the eigenvalues of H_(11) and H_(22) are known. Here H_(11) and H_(22) are rank-one modifications of k × k leading principal submatrix of H and of its × remain submatrix respectively. In the end, the uniqueness of H and an algorithm is obtained.

文中首先讨论了这三组特征值之间的交错关系，接着确定了该逆问题有解的充要条件，并论证了其解的唯一性问题，最后给出了相应的数值算法；本文第二个问题解决的是一类不可约的酉Hessenberg阵的逆特征值问题：即一个不可约的酉Hessenberg阵可以由它的特征值、它的前k阶秩一修正的顺序主子阵的特征值以及它的后n—k阶余子阵的秩一修正阵的特征值来确定，文中最后讨论了唯一性和相应的算法。

The inverse series is non-linear in the scattered field, which includes the source wavelet and a chosen reference medium's properties.;An imaging subseries of the inverse series for a 1-D constant density variable velocity acoustic medium is isolated and analyzed.

逆系列是非线性的散射场，其中包括小波的来源和选择范围中的属性。；的成像亚逆系列一维密度不断变速声中被孤立和分析。

Computer-simulation results related to the TNN model substantiate that the timing neural network could handle well the inverse-interpolation problems of one-to-one and multiple-to-one mappings. Keywords: neural networks, weights direct determination, inverse problems, timing neural network

基于前面提出的网络模型，本文进一步提出一种增加时序控制条件的神经网络，即时序神经网络模型，并给出理论推导和进行仿真验证，结果表明该时序神经网络能够成功解决一一映射及非一一映射反插值问题。

Through theoretical derivation, the author proved that the Landweber method is the transmogrification of the iteration solution of the generalized inverse, so the phenomenon that the reconstructed images of Landweber through many iterative processes is close to those reconstructed by generalized inverse method is explained, then a new reconstruction algorithm, namely pre-iteration method is presented, which divides the process of reconstruction into two steps, namely off-line pre-iteration and on-line one-step reconstruction.

通过理论推导，作者证明了Landweber法实际上可归于广义逆矩阵迭代求解的变形，从而解释了Landweber法多次迭代后，趋于广义逆解的现象。

The structured properties of tridiagonal inverse M-matrices are then studied in detail by using graph theory and combinatorial mathematics, and a sufficient condition for a nonnegative tridiagonal matrix to be an inverse M-inatrix is given.

第一部分分析证明了逆M-矩阵的结构特点和在Hadamard积下的封闭性；第二部分分析几类特殊矩阵的结构特点，以及它们逆矩阵的构造方法；第三部分研究对称不定矩阵秩一校正的Bunch-Kaufman分解和相应的算法。

The Porsche Owner: But it's my car!

可，这是我的车呀。

LOX_83}{Oh, another bunch of wackos.

{LOX_83}{呃，又一群怪人。