Results 21 to 30 of about 458,963 (267)

Characterization of the Existence of an N0-Completion of a Partial N0-Matrix with an Associated Directed Cycle

open access: yesThe Scientific World Journal, 2014
An n×n matrix is called an N0-matrix if all its specified principal minors are nonpositive. In the context of partial matrices, a partial matrix is called a partial N0-matrix if all its specified principal minors are nonpositive.
Cristina Jordán, Juan R. Torregrosa
doaj   +1 more source

{101¯2} twinning nucleation in magnesium assisted by alternative sweeping of partial dislocations via an intermediate precursor

open access: yesJournal of Magnesium and Alloys, 2020
Molecular dynamic simulation and transmission electron microscopy (TEM) characterization was employed to investigate the {101¯2} twinning mechanism in magnesium.
Zhen Zhang   +6 more
doaj   +1 more source

Some Results on Characterizations of Matrix Partial Orderings

open access: yesJournal of Applied Mathematics, 2014
Some characterizations of the left-star, right-star, and star partial orderings between matrices of the same size are obtained. Based on those results, several characterizations of the star partial ordering between EP matrices are given.
Hongxing Wang, Jin Xu
doaj   +1 more source

Dynamic stiffness matrix of partial-interaction composite beams

open access: yesAdvances in Mechanical Engineering, 2015
Composite beams have a wide application in building and bridge engineering because of their advantages of mechanical properties, constructability and economic performance. Unlike static characteristics, the methods of studying the dynamic characteristics
Guangjian Bao, Rongqiao Xu
doaj   +1 more source

Some Characterizations and Properties of a New Partial Order

open access: yesJournal of Mathematics, 2020
On the basis of Löwner partial order and core partial order, we introduce a new partial order: LC partial order. By applying matrix decomposition, core inverse, core partial order, and Löwner partial order, we give some characteristics of LC partial ...
Xiaoji Liu, Fang Gui
doaj   +1 more source

An explicit formula of perturbating stiffness matrix for partial natural frequency assignment using static output feedback

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
The partial eigenvalue (or natural frequency) assignment or placement, only by the stiffness matrix perturbation, of an undamped vibrating system is addressed in this paper. A novel and explicit formula of determining the perturbating stiffness matrix is
Jiafan Zhang   +3 more
doaj   +1 more source

On Some Applications of Matrix Partial Orders in Statistics [PDF]

open access: yesInternational Journal of Management, Knowledge and Learning, 2020
In statistics different partial orders appear as useful in several cases. Three of the best known partial orders defined on (sub)sets of real or complex matrices are the Löwner, the minus and the star partial orders.
Iva Golubić, Janko Marovt
doaj  

Phase diagrams for two-component D-wave fermion superfluids with density imbalance

open access: yesNew Journal of Physics, 2022
Finite-temperature phase structures for asymmetric two-component D -wave fermion superfluids in the weak coupling BCS regime are investigated. The Fulde–Ferrell–Larkin-Ovchinnikov (FFLO) state becomes non-degenerate with the orientation of Cooper pair ...
Lei Zhang   +3 more
doaj   +1 more source

A generalized operational matrix of mixed partial derivative terms with applications to multi-order fractional partial differential equations

open access: yesAlexandria Engineering Journal, 2022
In this paper, a computational approach based on the operational matrices in conjunction with orthogonal shifted Legendre polynomials (OSLPs) is designed to solve numerically the multi-order partial differential equations of fractional order consisting ...
Imran Talib   +4 more
doaj   +1 more source

Eigenstate Correlations in Dual-Unitary Quantum Circuits: Partial Spectral Form Factor [PDF]

open access: yesQuantum
While the notion of quantum chaos is tied to random matrix spectral correlations, also eigenstate properties in chaotic systems are often assumed to be described by random matrix theory.
Felix Fritzsch   +2 more
doaj   +1 more source

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