Results 11 to 20 of about 7,478 (247)

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

An S-type upper bound for the largest singular value of nonnegative rectangular tensors [PDF]

open access: yesOpen Mathematics, 2016
An S-type upper bound for the largest singular value of a nonnegative rectangular tensor is given by breaking N = {1, 2, … n} into disjoint subsets S and its complement. It is shown that the new upper bound is smaller than that provided by Yang and Yang (
Zhao Jianxing, Sang Caili
doaj   +4 more sources

Structured Rectangular Tensors and Rectangular Tensor Complementarity Problems [PDF]

open access: yesMathematical Problems in Engineering, 2020
In this paper, some properties of structured rectangular tensors are presented, and the relationship among these structured rectangular tensors is also given. It is shown that all the V-singular values of rectangular P-tensors are positive. Some necessary and/or sufficient conditions for a rectangular tensor to be a rectangular P-tensor are also ...
Qingyu Zeng, Jun He, Yanmin Liu
openaire   +2 more sources

Fundamental Invariants of Tensors, Latin Hypercubes, and Rectangular Kronecker Coefficients

open access: yesInternational Mathematics Research Notices, 2022
Abstract We study polynomial SL-invariants of tensors, mainly focusing on fundamental invariants that are of smallest degrees. In particular, we prove that certain 3-dimensional analogue of the Alon–Tarsi conjecture on Latin cubes considered previously by Bürgisser and Ikenmeyer implies positivity of (generalized) Kronecker coefficients ...
Amanov, Alimzhan, Yeliussizov, Damir
openaire   +2 more sources

V-singular values of rectangular tensors and their applications [PDF]

open access: yesJournal of Inequalities and Applications, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jun He   +3 more
openaire   +3 more sources

Mapping mechanical stress in curved epithelia of designed size and shape

open access: yesNature Communications, 2023
The function of organs such as lungs, kidneys and mammary glands relies on the three-dimensional geometry of their epithelium. To adopt shapes such as spheres, tubes and ellipsoids, epithelia generate mechanical stresses that are generally unknown.
Ariadna Marín-Llauradó   +10 more
doaj   +1 more source

The effect of added point masses on the geometrically non-linear vibrations of SCSC rectangular plates

open access: yesDiagnostyka, 2022
A point mass added to a plate may have a significant effect on its linear and nonlinear dynamics, including frequencies, mode shapes and the forced response to external loading.
Mustapha Hamdani   +2 more
doaj   +1 more source

Sound radiation by a vortex pair moving near a rectangular cylinder.

open access: yesNihon Kikai Gakkai ronbunshu, 2022
The sound generated by a vortex pair moving close to a rectangular cylinder is studied by high-resolution simulations of the two-dimensional unsteady compressible Navier-Stokes equations at Mach numbers ranging from 0.05 to 0.3.
Tsuyoshi KANUMA   +2 more
doaj   +1 more source

Ward identities and combinatorics of rainbow tensor models

open access: yesJournal of High Energy Physics, 2017
We discuss the notion of renormalization group (RG) completion of non-Gaussian Lagrangians and its treatment within the framework of Bogoliubov-Zimmermann theory in application to the matrix and tensor models. With the example of the simplest non-trivial
H. Itoyama, A. Mironov, A. Morozov
doaj   +1 more source

Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array

open access: yesSensors, 2018
This paper addresses the direction-of-arrival (DOA) estimation problem using a uniform rectangular array with electromagnetic vector-sensors in correlated/coherent signal environments. The polarization information is separated from the steering matrix to
Ming-Yang Cao   +3 more
doaj   +1 more source

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