Zobrazeno 1 - 10
of 1 003
pro vyhledávání: '"Single-entry matrix"'
Autor:
Iwan Duursma
Publikováno v:
Designs, Codes and Cryptography. 87:2507-2536
Trellises provide a graphical representation for the row space of a matrix. The product construction of Kschischang and Sorokine builds minimal conventional trellises from matrices in minimal span form. Koetter and Vardy showed that minimal tail-biti
Autor:
Haiou Shen, Buhong Wang
Publikováno v:
Digital Signal Processing. 73:40-46
An innovative approach based on the two-dimensional unitary matrix pencil (2-D UMP) is proposed for the synthesis of arbitrary sparse planar arrays. In this study, the estimation of array parameters is recast as a 2-D poles extraction problem, and th
Autor:
Arnold Richard Kräuter, Ik-Pyo Kim
Publikováno v:
Linear Algebra and its Applications. 537:100-117
We introduce the notion of dual matrices of an infinite matrix A, which are defined by the dual sequences of the rows of A and naturally connected to the Pascal matrix P = [ ( i j ) ] ( i , j = 0 , 1 , 2 , … ) . We present the Cholesky decompositio
Autor:
S. N. Kiyasov
Publikováno v:
Lobachevskii Journal of Mathematics. 38:1131-1145
The notion of approximate factorization of a Holder matrix function on a simple smooth closed contour is introduced. The elements of a (2 × 2)-matrix function of a special form are approximated by polynomials in z and 1/z. Sufficient conditions for
Autor:
Xiankun Xu, Peiwen Li
Publikováno v:
Journal of Computational Physics. 349:253-264
Fixman's work in 1974 and the follow-up studies have developed a method that can factorize the inverse of mass matrix into an arithmetic combination of three sparse matrices—one of them is positive definite and needs to be further factorized by usi
Publikováno v:
Journal of Ultra Scientist of Physical Sciences Section A. 29:418-426
Autor:
Mohammad Sal Moslehian, Mehdi Vosough
Publikováno v:
Linear and Multilinear Algebra. 66:1799-1818
In this paper, we first investigate the matrix equation in a new fashion, where A, B, C, D and G are arbitrary matrices. Then, we establish some necessary and sufficient conditions for the existence of a solution of , where A, B are arbitrary matrice
Publikováno v:
International Journal for Numerical Methods in Engineering. 113:277-295
Summary An efficient method for generating the mass matrix inverse of structural dynamic problems is presented, which can be tailored to improve the accuracy of target frequency ranges and/or wave contents. The present method bypasses the use of bior
Publikováno v:
Involve 10, no. 5 (2017), 781-799
A matrix completion problem asks whether a partial matrix composed of specified and unspecified entries can be completed to satisfy a given property. This work focuses on determining which patterns of specified and unspecified entries correspond to p
Autor:
Maryam Daei, S. Hamid Mirmohammadi
Publikováno v:
Engineering Computations. 34:447-470
Purpose The efficiency of the finite element analysis via force method depends on the overall flexibility matrix of the structure, while this matrix is directly affected from null bases vectors. As the null bases for an indeterminate structure are no