Results 31 to 40 of about 685,182 (317)
ABC energies and spectral radii of some graph operations
Frontiers in Physics, 2022 The present article presents some new results relating to Atomic Bond Connectivity energies and Spectral radii of generalized splitting and generalized shadow graphs constructed on the basis of some fundamental families of cycle graph Cn, complete graph ...
Ahmad Bilal, Muhammad Mobeen Munir
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Graphs with many valencies and few eigenvalues [PDF]
, 2015 Dom de Caen posed the question whether connected graphs with three distinct eigenvalues have at most three distinct valencies. We do not answer this question, but instead construct connected graphs with four and five distinct eigenvalues and arbitrarily ...
Koolen, Jack H. +2 more
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Linear Algebra and its Applications, 1982 AbstractWe study the dependence of the eigenvalues of a tridiagonal matrix upon off-diagonal entries. The change in the eigenvalues when a cross-diagonal product approaches zero or infinity is estimated.
William W. Hager, Roger N. Pederson
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Applied Sciences, 2018 Mathematical analysis of the well known model of a piezoelectric energy harvester is presented. The harvester is designed as a cantilever Timoshenko beam with piezoelectric layers attached to its top and bottom faces.
Marianna A. Shubov
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Single Value Decomposition to Estimate Critical Clearing Time of a Power System Using Measurements
IEEE Access, 2021 The transient stability analysis of large-interconnected power systems using time-domain simulations (TDS) is a significant challenge since it represents a huge computational cost.
Martha N. Acosta +5 more
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Steklov problem on differential forms [PDF]
, 2017 In this paper we study spectral properties of Dirichlet-to-Neumann map on differential forms obtained by a slight modification of the definition due to Belishev and Sharafutdinov.
De Jong, Frank J. +8 more
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ICASSP 2019 - 2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2019 In this paper, we propose a new regularized (penalized) co-variance matrix estimator which encourages grouping of the eigenvalues by penalizing large differences (gaps) between successive eigenvalues. This is referred to as fusing eigenval-ues (eFusion), The proposed penalty function utilizes Tukey's biweight function that is widely used in robust ...
Ollila, Esa +4 more
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Evaluation method of spindle performance degradation based on VMD and random forests
The Journal of Engineering, 2019 As one of the core components of the machine tool, the reliability of spindle is very important for improving machine tool quality. To effectively evaluate the performance degradation degree of the spindle, a method of degradation evaluation of the ...
Pangshi Wei, Hongjun Wang
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Calculus of Variations and Partial Differential Equations, 2013 We study a non-local eigenvalue problem related to the fractional Sobolev spaces for large values of p and derive the limit equation as p goes to infinity. Its viscosity solutions have many interesting properties and the eigenvalues exhibit a strange behaviour.
Lindgren, Erik, Lindqvist, Peter
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Eigenvalue Problem for the Second Order Differential Equation with Nonlocal
Nonlinear Analysis, 2006 The paper deals with numerical methods for eigenvalue problem for the second order ordinary differential operator with variable coefficient subject to nonlocal integral condition.
B. Bandyrskii +3 more
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