Results 41 to 50 of about 210,344 (267)

Principle of objectivity and classical physics

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1979
In literature, it is generally asserted that the “principle of objectivity” is valid for constitutive equations but not valid for general field equations.
M. Dutta, U. Basu
doaj   +1 more source

Bounds for the M-spectral radius of a fourth-order partially symmetric tensor

open access: yesJournal of Inequalities and Applications, 2018
M-eigenvalues of fourth-order partially symmetric tensors play an important role in many real fields such as quantum entanglement and nonlinear elastic materials analysis.
Suhua Li, Yaotang Li
doaj   +1 more source

Une machine à tenseurs TT sur les variétés d’Einstein

open access: yesComptes Rendus. Mathématique, 2023
In all dimensions $n \ge 3$, we introduce a differential operator of order 4 which, on Einstein manifolds, transforms the (fields of) trace free symmetric two tensors into TT-tensors.
Delay, Erwann
doaj   +1 more source

Super-energy and Killing-Yano tensors

open access: yes, 2004
In this paper we investigate a class of basic super-energy tensors, namely those constructed from Killing-Yano tensors, and give a generalization of super-energy tensors for cases when we start not with a single tensor, but with a pair of tensors.Comment:
Anderson   +25 more
core   +2 more sources

On the theory of fourth-rank hemitropic tensors in three-dimensional Euclidean spaces

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2022
The paper is devoted to problems concerning the tensors with constant components, hemitropic tensors and pseudotensors that are of interest from the point of view of micropolar continuum mechanics. The properties and coordinate representations of tensors
Eugenii V. Murashkin, Yuri N. Radayev
doaj   +1 more source

Centrosymmetric, Skew Centrosymmetric and Centrosymmetric Cauchy Tensors [PDF]

open access: yes, 2014
Recently, Zhao and Yang introduced centrosymmetric tensors. In this paper, we further introduce skew centrosymmetric tensors and centrosymmetric Cauchy tensors, and discuss properties of these three classes of structured tensors.
Chen, Haibin, Chen, Zhen, Qi, Liqun
core  

$SDD_1$ tensors and $B_1$-tensors

open access: yesThe Electronic Journal of Linear Algebra
Strong $\mathcal{H}$-tensors play an important role in the fields of science and engineering. In this paper, we first propose a new subclass of strong $\mathcal{H}$-tensors that we call the class of $SDD_1$ tensors. We also prove that if a tensor is an $SDD_1$ tensor, it is a strong $\mathcal{H}$-tensor. As an application, a sufficient condition for an
Weiting Duan, Dekun Wen, Yaqiang Wang
openaire   +1 more source

Vector‐Tensor Multiplets [PDF]

open access: yesFortschritte der Physik, 1998
We review the coupling of N=2 supergravity to vector-tensor multiplets, based on the method of superconformal multiplet calculus.
P. Claus   +6 more
openaire   +3 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

SOS-Hankel Tensors: Theory and Application [PDF]

open access: yes, 2014
Hankel tensors arise from signal processing and some other applications. SOS (sum-of-squares) tensors are positive semi-definite symmetric tensors, but not vice versa.
Li, Guoyin, Qi, Liqun, Xu, Yi
core   +1 more source

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