Results 1 to 10 of about 5,859 (117)
Frontiers in Earth Science, 2022 The maximum time step size for the explicit finite-difference scheme complies with the Courant–Friedrichs–Lewy (CFL) stability condition, which essentially restricts the optimization and tuning of the communication-intensive massive seismic wave ...
Yingjie Gao +5 more
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On the Displacement of Eigenvalues When Removing a Twin Vertex
Discussiones Mathematicae Graph Theory, 2020 Twin vertices of a graph have the same open neighbourhood. If they are not adjacent, then they are called duplicates and contribute the eigenvalue zero to the adjacency matrix.
Briffa Johann A., Sciriha Irene
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Global Perturbation of Nonlinear Eigenvalues
Advanced Nonlinear Studies, 2021 This paper generalizes the classical theory of perturbation of eigenvalues up to cover the most general setting where the operator surface 𝔏:[a,b]×[c,d]→Φ0(U,V){\mathfrak{L}:[a,b]\times[c,d]\to\Phi_{0}(U,V)}, (λ,μ)↦𝔏(λ,μ){(\lambda,\mu)\mapsto\mathfrak ...
López-Gómez Julián +1 more
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Real Valued Functions for the BFKL Eigenvalue
Universe, 2021 We consider known expressions for the eigenvalue of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) equation in N=4 super Yang-Mills theory as a real valued function of two variables.
Mohammad Joubat, Alex Prygarin
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Soft photon radiation and entanglement
European Physical Journal C: Particles and Fields, 2021 We study the entanglement between soft and hard particles produced in generic scattering processes in QED. The reduced density matrix for the hard particles, obtained via tracing over the entire spectrum of soft photons, is shown to have a large ...
Anastasios Irakleous +2 more
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Use the perturbation method to find the solvability condition for a particular boundary value problem. [PDF]
مجلة التربية والعلم, 2009 We study in this paper, how to use the perturbation method to find the solvability condition for certain boundary value problem of fourth order which has the form: with Where is an eigenvalue and is a continuous function defined on ...
Lamyaa Sadoon
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Asymptotic methods of nonlinear fracture mechanics: results, contemporary state and perspectives
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013 In the paper the brief review of the important results of nonlinear fracture mechanics recently obtained by the asymptotic methods and perturbation techniques is given.
Larisa V Stepanova, Ekaterina M Adylina
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Journal 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
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Topology uniformity pinning control for multi-agent flocking
Complex & Intelligent Systems, 2023 The optimal selection of pinning nodes for multi-agent flocking is a challenging NP-hard problem. Current pinning node selection strategies mainly rely on centrality measures of complex networks, which lack rigorous mathematical proof for effective ...
Jintao Liu +4 more
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Fourth-order Perturbed Eigenvalue Equation for Stepwise Damage Detection of Aeroplane Wing
MATEC Web of Conferences, 2016 Perturbed eigenvalue equations up to fourth-order are established to detect structural damage in aeroplane wing. Complete set of perturbation terms including orthogonal and non-orthogonal coefficients are computed using perturbed eigenvalue and ...
Wong Chun Nam +3 more
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