Results 31 to 40 of about 157,300 (313)

Bounds for Degree-Sum adjacency eigenvalues of a graph in terms of Zagreb indices [PDF]

open access: yesComputer Science Journal of Moldova, 2021
For a graph $G$ the degree sum adjacency matrix $DS_A(G)$ is defined as a matrix, in which every element is sum of the degrees of the vertices if and only if the corresponding vertices are adjacent, otherwise it is zero.
Sumedha S. Shinde   +3 more
doaj  

Spectral characteristics of the integral operator of the internal problem of electrodynamics for elliptical frame structure

open access: yesФизика волновых процессов и радиотехнические системы, 2023
The article is devoted to the analysis of electrodynamic properties elliptical frame structure. Taking into account double symmetry internal problem of electrodynamics for the structure under consideration in the framework of the thin-wire approximation ...
Dmitry P. Tabakov, Andrey G. Mayorov
doaj   +1 more source

Eigenvalue inequalities for the buckling problem of the drifting Laplacian of arbitrary order

open access: yesAdvances in Nonlinear Analysis, 2022
In this paper, we investigate the buckling problem of the drifting Laplacian of arbitrary order on a bounded connected domain in complete smooth metric measure spaces (SMMSs) supporting a special function, and successfully obtain a general inequality for
Du Feng   +3 more
doaj   +1 more source

Eigenvalue Attraction [PDF]

open access: yesJournal of Statistical Physics, 2015
We prove that the complex conjugate (c.c.) eigenvalues of a smoothly varying real matrix attract (Eq. 15). We offer a dynamical perspective on the motion and interaction of the eigenvalues in the complex plane, derive their governing equations and discuss applications. C.c. pairs closest to the real axis, or those that are ill-conditioned, attract most
openaire   +5 more sources

Fourier transform, null variety, and Laplacian's eigenvalues [PDF]

open access: yes, 2009
We consider a quantity κ(Ω)—the distance to the origin from the null variety of the Fourier transform of the characteristic function of Ω. We conjecture, firstly, that κ(Ω) is maximised, among all convex balanced domains of a fixed volume, by a ball ...
Benguria, Rafael   +3 more
core   +1 more source

On the Properties of r-Circulant Matrices Involving Generalized Fermat Numbers

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2023
-circulant matrices have applied in numerical computation, signal processing, coding theory, etc. In this study, our main goal is to investigate the r-circulant matrices of generalized Fermat numbers which are shown by We obtain the eigenvalues ...
Engin Özkan, Engin Eser, Bahar Kuloǧlu
doaj   +1 more source

The main eigenvalues of a graph: a survey [PDF]

open access: yes, 2007
We survey results relating main eigenvalues and main angles to the structure of a graph. We provide a number of short proofs, and note the connection with star partitions.
Peter Rowlinson, Rowlinson, Peter
core   +1 more source

Markov Modelling and Cluster-Based Analysis of Transport Layer Traffic Using Quick User Datagram Protocol Internet Connections

open access: yesEngineering Proceedings
Quick User Datagram Protocol Internet Connection (QUIC) is a modern transport protocol leveraging the User Datagram Protocol (UDP) to improve latency, security, and mobility.
Zoltan Gal   +2 more
doaj   +1 more source

Formulation for an Ogden-type hyperelastic analysis with hyper dual numbers and its performance evaluation

open access: yesNihon Kikai Gakkai ronbunshu, 2019
A numerical calculation scheme for stress and its consistent tangent moduli with hyper-dual numbers(HDN) for Ogden-type hyperelastic material model was proposed.
Masaki FUJIKAWA   +5 more
doaj   +1 more source

On the Detection of Fracture within Vibrating Beams Traversed by a Moving Force

open access: yesInfrastructures, 2022
In this work, we examine the influence of a crack in the span of a beam as it is being traversed by a point force with constant velocity. This problem presents two types of discontinuities: one spatial, where the crack is modelled as a discontinuity in ...
Georgios I. Dadoulis, George D. Manolis
doaj   +1 more source

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