Results 11 to 20 of about 692,618 (182)

Exact solutions of the Cn quantum spin chain

open access: yesNuclear Physics B, 2021
We study the exact solutions of quantum integrable model associated with the Cn Lie algebra, with either a periodic or an open one with off-diagonal boundary reflections, by generalizing the nested off-diagonal Bethe ansatz method.
Guang-Liang Li   +7 more
doaj   +1 more source

p-Topologicalness—A Relative Topologicalness in ⊤-Convergence Spaces

open access: yesMathematics, 2019
In this paper, p-topologicalness (a relative topologicalness) in ⊤-convergence spaces are studied through two equivalent approaches. One approach generalizes the Fischer’s diagonal condition, the other approach extends the Gähler’s ...
Lingqiang Li
doaj   +1 more source

Integrals Involving Product of Polynomials and Daubechies Scale Functions [PDF]

open access: yesMathematics Interdisciplinary Research, 2021
In this paper, we will introduce an algorithm for obtaining integrals of the form ∫x0 tm φ(t)dt, m ∈ N ∪ {0}, where φ is the scaling functions of Daubechies wavelet.
Amjad Alipanah   +2 more
doaj   +1 more source

Diagonal Riccati Stability and Applications [PDF]

open access: yes, 2015
We consider the question of diagonal Riccati stability for a pair of real matrices A, B. A necessary and sufficient condition for diagonal Riccati stability is derived and applications of this to two distinct cases are presented.
Aleksandrov, Alexander, Mason, Oliver
core   +2 more sources

Spectral analysis of Jacobi operators and asymptotic behavior of orthogonal polynomials

open access: yesBulletin of Mathematical Sciences, 2022
We find and discuss asymptotic formulas for orthonormal polynomials [Formula: see text] with recurrence coefficients [Formula: see text]. Our main goal is to consider the case where off-diagonal elements [Formula: see text] as [Formula: see text ...
D. R. Yafaev
doaj   +1 more source

On anisotropic tensile mechanical behavior of Al–Cu–Li AA2198 alloy under different ageing conditions

open access: yesJournal of Materials Research and Technology, 2023
The anisotropic mechanical behavior of Al–Cu–Li (AA2198) alloy under different artificial ageing conditions as well as for different thicknesses of the material was examined in the present investigation.
Theano N. Examilioti   +6 more
doaj   +1 more source

Diagonal Scaling of Ill-Conditioned Matrixes by Genetic Algorithm [PDF]

open access: yesJournal of Applied Mathematics, Statistics and Informatics, 2012
Diagonal Scaling of Ill-Conditioned Matrixes by Genetic AlgorithmThe purpose of this article is to use genetic algorithm for finding two invertible diagonal matricesD1andD2such that the scaled matrixD1AD2approaches to minimum condition number.
Vajargah, Behrouz Fathi, Moradi, Mojtaba
openaire   +1 more source

Bulk matter and the boundary quantum null energy condition

open access: yesJournal of High Energy Physics, 2018
We investigate the quantum null energy condition (QNEC) in holographic CFTs, focusing on half-spaces and particular classes of states. We present direct, and in certain cases nonperturbative, calculations for both the diagonal and off-diagonal ...
Zuhair U. Khandker   +2 more
doaj   +1 more source

In situ evidence of breaking the ion frozen-in condition via the non-gyrotropic pressure effect in magnetic reconnection [PDF]

open access: yesAnnales Geophysicae, 2015
For magnetic reconnection to proceed, the frozen-in condition for both ion fluid and electron fluid in a localized diffusion region must be violated by inertial effects, thermal pressure effects, or inter-species collisions.
L. Dai   +4 more
doaj   +1 more source

Study on Sloshing Characteristics in a Liquid Cargo Tank under Combination Excitation

open access: yesJournal of Marine Science and Engineering, 2022
Sloshing is a common flow phenomenon in liquid cargo tanks and has a great negative impact on the stability and safety of ship navigation. It is important to understand the sloshing process of tanks under the excitation of complex external conditions for
Qiong Zhang, Bo Shui, Hanhua Zhu
doaj   +1 more source

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