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Quantum Coding via Quasi-Cyclic Block Matrix [PDF]

open access: yesEntropy, 2023
An effective construction method for long-length quantum code has important applications in the field based on large-scale data. With the rapid development of quantum computing, how to construct this class of quantum coding has become one of the key ...
Yuan Li, Jin-Yang Li
doaj   +4 more sources

A particular block Vandermonde matrix [PDF]

open access: yesITM Web of Conferences, 2019
The Vandermonde matrix is ubiquitous in mathematics and engineering. Both the Vandermonde matrix and its inverse are often encountered in control theory, in the derivation of numerical formulas, and in systems theory.
Yaici Malika, Hariche Kamel
doaj   +2 more sources

SeqBMC: Single‐cell data processing using iterative block matrix completion algorithm based on matrix factorisation [PDF]

open access: yesIET Systems Biology
With the development of high‐throughput sequencing technology, the analysis of single‐cell RNA sequencing data has become the focus of current research.
Gong Lejun   +4 more
doaj   +2 more sources

Fredholm theory for demicompact linear relations

open access: yesApplied General Topology, 2022
We first attempt to determine conditions on a linear relation T such that μT becomes a demicompact linear relation for each μ ∈ [0,1)(see Theorems 2.4 and 2.5).
Aymen Ammar, Slim Fakhfakh, Aref Jeribi
doaj   +1 more source

Algebraic Characterizations of Relationships between Different Linear Matrix Functions

open access: yesMathematics, 2023
Let f(X1,X2,…,Xk) be a matrix function over the field of complex numbers, where X1,X2,…,Xk are a family of matrices with variable entries. The purpose of this paper is to propose and investigate the relationships between certain linear matrix functions ...
Yongge Tian, Ruixia Yuan
doaj   +1 more source

On Relationships between a Linear Matrix Equation and Its Four Reduced Equations

open access: yesAxioms, 2022
Given the linear matrix equation AXB=C, we partition it into the form A1X11B1+A1X12B2+A2X21B1+A2X22B2=C, and then pre- and post-multiply both sides of the equation by the four orthogonal projectors generated from the coefficient matrices A1, A1, B1, and ...
Bo Jiang, Yongge Tian, Ruixia Yuan
doaj   +1 more source

Miscellaneous equalities for idempotent matrices with applications

open access: yesOpen Mathematics, 2020
This article brings together miscellaneous formulas and facts on matrix expressions that are composed by idempotent matrices in one place with cogent introduction and references for further study.
Tian Yongge
doaj   +1 more source

Characterizations of the group invertibility of a matrix revisited

open access: yesDemonstratio Mathematica, 2022
A square complex matrix AA is said to be group invertible if there exists a matrix XX such that AXA=AAXA=A, XAX=XXAX=X, and AX=XAAX=XA hold, and such a matrix XX is called the group inverse of AA.
Tian Yongge
doaj   +1 more source

Block Matrix Formulations for Evolving Networks [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2017
18 pages, 2 ...
Fenu, Caterina, Higham, Desmond J.
openaire   +6 more sources

Experimental and modeling study on the effect of molecular diffusion during CO2 injection

open access: yesPetroleum Research, 2021
In this work, a new approach based on the effect of molecular diffusion on oil recovery during CO2 injection in naturally fractured reservoirs has been proposed to examine the best condition for oil recovery in the matrix block.
Vahid Moayedi Esfahani   +3 more
doaj   +1 more source

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