Generalized Karagiannidis–Lioumpas Approximations and Bounds to the Gaussian Q-Function With Optimized Coefficients
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DOI: 10.1109/lcomm.2021.3139372
Abstract: We develop extremely tight novel approximations, lower bounds and upper bounds for the Gaussian $Q$ -function and offer multiple alternatives for the coefficient sets thereof, which are optimized in terms of the four most relevant… read more here.
Keywords: function; tex math; inline formula; approximations bounds ... See more keywords
Lower Bounds for Gaussian Estrada Index of Graphs
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DOI: 10.3390/sym10080325
Abstract: Suppose that G is a graph over n vertices. G has n eigenvalues (of adjacency matrix) represented by λ1, λ2, · · · , λn. The Gaussian Estrada index, denoted by H(G) (Estrada et al.,… read more here.
Keywords: bounds gaussian; estrada index; index; lower bounds ... See more keywords