Results 31 to 40 of about 710,897 (308)
Shape-dependence of transmission, reflection and absorption eigenvalue densities in disordered waveguides with dissipation [PDF]
, 2015 The universal bimodal distribution of transmission eigenvalues in lossless diffusive systems un- derpins such celebrated phenomena as universal conductance fluctuations, quantum shot noise in condensed matter physics and enhanced transmission in optics ...
Cao, H. +3 more
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Quenched divergences in the deconfined phase of SU(2) gauge theory [PDF]
, 2001 The spectrum of the overlap Dirac operator in the deconfined phase of quenched gauge theory is known to have three parts: exact zeros arising from topology, small nonzero eigenvalues that result in a non-zero chiral condensate, and the dense bulk of the ...
C. Bernard +26 more
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Mathematics, 2022 In this paper, we first derive a family of iterative schemes with fourth order. A weight function is used to maintain its optimality. Then, we transform it into methods with several self-accelerating parameters to reach the highest possible convergence ...
Malik Zaka Ullah +3 more
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Krein signature for instability of $\mathcal{PT}$-symmetric states
, 2017 Krein quantity is introduced for isolated neutrally stable eigenvalues associated with the stationary states in the $\mathcal{PT}$-symmetric nonlinear Schr\"{o}dinger equation.
Chernyavsky, Alexander +1 more
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Stochastic stability of Pollicott-Ruelle resonances [PDF]
, 2016 Pollicott-Ruelle resonances for chaotic flows are the characteristic frequencies of correlations. They are typically defined as eigenvalues of the generator of the flow acting on specially designed functional spaces.
Dyatlov, Semyon, Zworski, Maciej
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ISI spectral radii and ISI energies of graph operations
Frontiers in Physics, 2023 Graph energy is defined to be the p-norm of adjacency matrix associated to the graph for p = 1 elaborated as the sum of the absolute eigenvalues of adjacency matrix.
Ahmad Bilal +3 more
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Eigenvalue Ratio Detection Based on Exact Moments of Smallest and Largest Eigenvalues [PDF]
, 2011 Detection based on eigenvalues of received signal covariance matrix is currently one of the most effective solution for spectrum sensing problem in cognitive radios.
Alouini, Mohamed-Slim +4 more
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Bounds for Degree-Sum adjacency eigenvalues of a graph in terms of Zagreb indices [PDF]
Computer 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
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Физика 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
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Pucci eigenvalues on geodesic balls
, 2016 We study the eigenvalue problem for the Riemannian Pucci operator on geodesic balls. We establish upper and lower bounds for the principal Pucci eigenvalues depending on the curvature, extending Cheng's eigenvalue comparison theorem for the Laplace ...
Ariturk, Sinan
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