Results 21 to 30 of about 86,105 (286)

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

A mixed elastoplastic / rigid plastic material model [PDF]

open access: yes, 1999
A new integration algorithm for plastic deformation is derived in combination with the\ud anisotropic Hill’49 yield criterion. The algorithm degenerates to the Euler forward elastoplastic material\ud model for small deformations and to the rigid plastic ...
Boogaard, A.H. van den   +2 more
core   +2 more sources

Singular values of a real rectangular tensor

open access: yesJournal of Mathematical Analysis and Applications, 2010
Eigenvalues for real square tensors have been introduced and nice properties such as the Perron-Frobenius theorem for eigenvalues of nonnegative square tensors have been obtained in recent years. Real rectangular tensors arise from the strong ellipticity condition problem in solid mechanics and the entanglement problem in quantum physics. In this paper
Chang, K., Qi, L., Zhou, Guanglu
openaire   +2 more sources

Investigating the buckling and vibration of a Kirchhoff rectangular nanoplate using modified couple stress theory

open access: yesИзвестия высших учебных заведений. Поволжский регион: Физико-математические науки, 2023
In this paper a model is developed for the buckling and vibration analysis of a Kirchhoff rectangular nanoplate based on a modified couple stress theory.
Majid E. Shahraki, Jafar E. Jam
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

Block Circulant and Toeplitz Structures in the Linearized Hartree–Fock Equation on Finite Lattices: Tensor Approach [PDF]

open access: yes, 2017
This paper introduces and analyses the new grid-based tensor approach to approximate solution of the elliptic eigenvalue problem for the 3D lattice-structured systems.
Khoromskaia, V., Khoromskij, B.
core   +3 more sources

Faster Algorithms for Rectangular Matrix Multiplication [PDF]

open access: yes, 2012
Let {\alpha} be the maximal value such that the product of an n x n^{\alpha} matrix by an n^{\alpha} x n matrix can be computed with n^{2+o(1)} arithmetic operations.
Gall, François Le
core   +1 more source

Degenerate two-boundary centralizer algebras [PDF]

open access: yes, 2011
Diagram algebras (e.g. graded braid groups, Hecke algebras, Brauer algebras) arise as tensor power centralizer algebras, algebras of commuting operators for a Lie algebra action on a tensor space.
Daugherty, Zajj
core   +2 more sources

Application of exterior calculus to waveguides [PDF]

open access: yes, 2010
Exterior calculus is a powerful tool to search for solutions to the electromagnetic field equations, whose strength can be better appreciated when applied to work out non-trivial configurations.
Ferraro, Rafael
core   +2 more sources

Fusion products, Kostka polynomials, and fermionic characters of su(r+1)_k [PDF]

open access: yes, 2005
Using a form factor approach, we define and compute the character of the fusion product of rectangular representations of \hat{su}(r+1). This character decomposes into a sum of characters of irreducible representations, but with q-dependent coefficients.
Ardonne E   +14 more
core   +1 more source

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