Results 21 to 30 of about 51,101 (296)
A delay deviation tolerance IP geolocation method with error estimation
Scientific Reports, 2022 IP geolocation is an important basis of location-based network services, while error estimation is an important basis for judging the reliability of results. Most of the existing IP geolocation algorithms cannot estimate the geolocation error.
Shuodi Zu +3 more
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Geometric properties of the lattice of polynomials with integer coefficients [PDF]
Opuscula MathematicaThis paper is related to the classic but still being examined issue of approximation of functions by polynomials with integer coefficients. Let \(r\), \(n\) be positive integers with \(n \ge 6r\).
Artur Lipnicki, Marek J. Śmietański
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The complexity of the covering radius problem [PDF]
computational complexity, 2005 We initiate the study of the computational complexity of the covering radius problem for lattices, and approximation versions of the problem for both lattices and linear codes. We also investigate the computational complexity of the shortest linearly independent vectors problem, and its relation to the covering radius problem for lattices.
Venkatesan Guruswami +2 more
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The Astrophysical Journal, 2023 We present spectroscopic chemical abundances of red giant branch stars in Andromeda (M31), using medium-resolution ( R ∼ 6000) spectra obtained via the Spectroscopic and Photometric Landscape of Andromeda’s Stellar Halo survey.
J. Leigh Wojno +8 more
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Journal of Mathematics, 2023 The objective of the current paper is to find the necessary and sufficient condition for the function to belong to the subclass of Cd,δ,μ,β of analytic functions involving the Poisson distribution defined by the p,q derivative operator.
S. Santhiya, K. Thilagavathi
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Abstract and Applied Analysis, 2014 This paper analyzes the site selection problems of water treatment plants by utilizing the set covering model. Fully consider the influence of the pipe network arrangement on the site selection when confirming the covering radius, analyze the best water ...
Yan Li, Lianying Zhang
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Seismic Hazard Analysis and Obtaining Uniform Hazard Spectra for Esfahan Region, Iran [PDF]
Journal of Rehabilitation in Civil Engineering, 2014 The present study was conducted to determine peak ground acceleration (PGA) over bedrock in probabilistic analysis methods for the seismic hazard and uniform hazard spectra at different hazard levels for Esfahan city.
Seyed Ali Razavian Amrei +2 more
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Design of Compact, Broadband, and Low-Loss Silicon Waveguide Bends with Radius under 500 nm
Photonics, 2022 Waveguide bend is an indispensable component in the on-chip compact photonic integrated circuits (PICs) and the minimum bend size greatly limits the increase of integration density of PICs.
Zhekang Zhang +5 more
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A New Robust Mathematical Model for the Multi-product Capacitated Single Allocation Hub Location Problem with Maximum Covering Radius [PDF]
International Journal of Supply and Operations Management, 2017 This paper presents a new robust mathematical model for the multi-product capacitated single allocation hub location problem with maximum covering radius.
Mahdi Alinaghian +2 more
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Covering radius in the Hamming permutation space [PDF]
European Journal of Combinatorics, 2020 Let $\mathcal{S}_n$ denote the set of permutations of $\{1,2,\dots,n\}$. The function $f(n,s)$ is defined to be the minimum size of a subset $S\subseteq \mathcal{S}_n$ with the property that for any $ρ\in \mathcal{S}_n$ there exists some $σ\in S$ such that the Hamming distance between $ρ$ and $σ$ is at most $n-s$.
Kevin Hendrey, Ian M. Wanless
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