Results 1 to 10 of about 59,171 (165)

Linear convergence of the NQZ algorithm for finding the H-spectral radius of nonnegative tensors. [PDF]

open access: yesPLoS ONE
The R-linear convergence of the NQZ algorithm for computing the H-spectral radius of a class of weakly irreducible nonnegative tensors is established by utilizing the directed graphs of tensors. Meanwhile, an upper bound for the root convergence factor R
Hongbin Lv, Meixiang Chen
doaj   +4 more sources

Some inequalities on the spectral radius of nonnegative tensors

open access: yesOpen Mathematics, 2020
The eigenvalues and the spectral radius of nonnegative tensors have been extensively studied in recent years. In this paper, we investigate the analytic properties of nonnegative tensors and give some inequalities on the spectral radius.
Ma Chao   +3 more
doaj   +2 more sources

A Very Brief Introduction to Nonnegative Tensors from the Geometric Viewpoint

open access: yesMathematics, 2018
This note is a short survey of nonnegative tensors, primarily from the geometric point of view. In addition to basic definitions, we discuss properties of and questions about nonnegative tensors, which may be of interest to geometers.
Yang Qi
doaj   +2 more sources

Bound for the largest singular value of nonnegative rectangular tensors

open access: yesOpen Mathematics, 2016
In this paper, we give a new bound for the largest singular value of nonnegative rectangular tensors when m = n, which is tighter than the bound provided by Yang and Yang in “Singular values of nonnegative rectangular tensors”, Front. Math.
He Jun   +4 more
doaj   +2 more sources

A new bound for the spectral radius of nonnegative tensors [PDF]

open access: yesJournal of Inequalities and Applications, 2017
By estimating the ratio of the smallest component and the largest component of a Perron vector, we provide a new bound for the spectral radius of a nonnegative tensor.
Suhua Li, Chaoqian Li, Yaotang Li
doaj   +2 more sources

Bounds for the Z-eigenpair of general nonnegative tensors

open access: yesOpen Mathematics, 2016
In this paper, we consider the Z-eigenpair of a tensor. A lower bound and an upper bound for the Z-spectral radius of a weakly symmetric nonnegative irreducible tensor are presented.
Liu Qilong, Li Yaotang
doaj   +2 more sources

On Some Properties of the Max Algebra System Over Tensors [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2018
Recently we generalized the max algebra system to the class of nonnegative  tensors. In this paper we give some basic properties for the left (right) inverse, under the new system. The existence of order 2 left (right) inverse of tensors is characterized.
Ali Reza Shojaeifard, Hamid Reza Afshin
doaj   +3 more sources

V-singular values of rectangular tensors and their applications

open access: yesJournal of Inequalities and Applications, 2019
The positive definiteness of rectangular tensors has wide applications in solid mechanics and quantum physics. By modifying the existing definition of singular value for rectangular tensors, some V-singular value inclusion sets for rectangular tensors ...
Jun He   +3 more
doaj   +2 more sources

Hypergraph regularized nonnegative triple decomposition for multiway data analysis [PDF]

open access: yesScientific Reports
Tucker decomposition is widely used for image representation, data reconstruction, and machine learning tasks, but the calculation cost for updating the Tucker core is high.
Qingshui Liao   +2 more
doaj   +2 more sources

Two new lower bounds for the minimum eigenvalue of M-tensors

open access: yesJournal of Inequalities and Applications, 2016
Two new lower bounds for the minimum eigenvalue of an irreducible M-tensor are given. It is proved that the new lower bounds improve the corresponding bounds obtained by He and Huang (J. Inequal. Appl. 2014:114, 2014).
Jianxing Zhao, Caili Sang
doaj   +1 more source

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