Results 81 to 90 of about 213 (116)

Inertias and ranks of some Hermitian matrix functions with applications

Open Mathematics, 2012
Zhang Xiang, Wang Qing-Wen, Liu Xin
doaj   +1 more source

Quadratic prediction problems in multivariate linear models

Linear and quadratic prediction problems in finite populations have become of great interest to many authors recently. In the present paper, we mainly aim to extend the problem of quadratic prediction from a general linear model, of form , to a ...
Liu, Xu-Qing, Wang, Dong-Dong, Rong, Jian-Ying   +2 more
core  

Weighted MP weak group inverse

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
To extent the notion of the MP weak group inverse for square matrices, we introduce the concept of the weighted MP weak group inverse for rectangular matrices.
Mosić Dijana, Marovt Janko
doaj   +1 more source

Weak MPCEP and *CEPMP inverses

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica
We generalize the systems of equations, which introduced the MPCEP and *CEPMP inverses, using a minimal rank weak Drazin inverse and a minimal rank right weak Drazin inverse.
Mosić Dijana
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The Generating Function of the Catalan Numbers and Lower Triangular Integer Matrices

, 2017
Feng Qi (祁锋), Xiaowei Qin, Yong-hong Yao   +2 more
semanticscholar   +1 more source

On the Drazin index of regular elements

Open Mathematics, 2009
Patrício Pedro, Costa António
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Pairs of k-step reachability and m-step observability matrices

Special Matrices, 2013
Ferrante Augusto, Wimmer Harald K.
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On some characterizations of the partial orderings for bounded operators

, 2012
Chunyan Deng, Shun-Hwa Wang
semanticscholar   +1 more source

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On Fermat power GCD matrices defined on special sets of positive integers

Applied Mathematical Sciences, 2019
In this article, we define the n×n Fermat Power GCD matrices defined on non factor-closed and non gcd-closed sets. A complete characterization of their factorizations, determinants, reciprocals, and inverses are given. Mathematics Subject Classification:
Y. Awad, R. Mghames, H. Chehade, W. Zeid
semanticscholar   +1 more source

The Explicit Inverses of CUPL-Toeplitz and CUPL-Hankel Matrices

, 2017
Zhaolin Jiang, Xiao-ting Chen, Jian-min Wang   +2 more
semanticscholar   +1 more source