Results 61 to 70 of about 26,944 (191)
Minimum Eigenvalue Detection for Spectrum Sensing in Cognitive Radio
, 2014 Spectrum sensing is a key task for cognitive radio. Our motivation is to increase the probability of detection for spectrum sensing in cognitive radio.
Ali, Syed Sajjad +2 more
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Lower bounds for the minimum eigenvalue of Hadamard product of an M-matrix and its inverse
, 2007 For the Hadamard product A∘A−1 of an M-matrix A and its inverse A−1, we give new lower bounds for the minimum eigenvalue of A∘A−1. These bounds are strong enough to prove the conjecture of Fiedler and Markham [An inequality for the Hadamard product of an
Li, Hong +3 more
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Inverse Eigenvalue Problems for Two Special Acyclic Matrices
Mathematics, 2016 In this paper, we study two inverse eigenvalue problems (IEPs) of constructing two special acyclic matrices. The first problem involves the reconstruction of matrices whose graph is a path, from given information on one eigenvector of the required matrix
Debashish Sharma, Mausumi Sen
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The "hot spots" conjecture on the Vicsek set
Demonstratio Mathematica, 2019 We prove the “hot spots” conjecture on the Vicsek set. Specifically, we will show that every eigenfunction of the second smallest eigenvalue of the Neumann Laplacian on the Vicsek set attains its maximum and minimum on the boundary.
Ionescu Marius, Savage Thomas L.
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Journal of Inequalities and Applications, 2017 In this paper, we determine the unique graph whose least signless Laplacian eigenvalue attains the minimum among all non-bipartite unicyclic graphs of order n with maximum degree Δ and among all non-bipartite connected graphs of order n with maximum ...
Shu-Guang Guo, Rong Zhang
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Notes on the minimum eigenvalue of the fan product
Journal of Physics: Conference SeriesAbstract This article aims to discuss the minimum eigenvalue of the Fan product. We derive a new lower bound for the minimum eigenvalue based on the previous result and compare it with related conclusions. Finally, we verify our findings with a specific example.
Ling Li, Qin Zhong
openaire +1 more source
, 1989 We prove that if B is an essentially nonnegative symmetric matrix with minimum eigenvalue m(B) and if the graph of B is connected and bipartite (with bipartition V1 ∪ V2, then there exists an eigenvector x belonging to m(B) such that xi > 0 for iϵV1 and ...
Roth, Robert
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Cooperative spectrum sensing algorithm based on limiting eigenvalue distribution
Tongxin xuebao, 2015 A novel maximum-minimum eigenvalue (NMME) cooperative spectrum sensing algorithm and threshold decision rule are proposed via analyzing minimum eigenvalue limiting distribution of the covariance matrix of the received signals from multiple cognitive ...
Yin MI, Guang-yue LU
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EnergiesWhen conducting research on the static voltage stability of AC/DC systems with voltage source converter-high voltage direct current (VSC-HVDC) transmission lines, the focus is often given to reactive power control, neglecting the potential from active ...
Jinpeng Guo +5 more
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Ratio of maximum-minimum eigenvalue of each sub-band data of the received signal in Fig 3(A).
, 2015 Ratio of maximum-minimum eigenvalue of each sub-band data of the received signal in Fig 3(A).
Junpeng Hu (787747) +3 more
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