Results 31 to 40 of about 58,584 (207)
Upper and lower bounds for competitive group testing
Discrete Applied Mathematics, 2023 We consider competitive algorithms for adaptive group testing problems. In the first part of the paper, we develop an algorithm with competitive constant c < 1.452 thus improving the up to now best known algorithms with constants 1.5+epsilon from 2003.
Scheidweiler, Robert, Triesch, Eberhard
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Upper and lower bounds on the integrated null energy in gravity
Journal of High Energy Physics, 2019 We prove a lower bound on the integrated null energy along achronal geodesic segments using induced gravity on a brane in AdS/CFT. The bound follows from the assumption that bulk causality respects brane causality, and matches a bound recently ...
Stefan Leichenauer, Adam Levine
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Minimax perturbation bounds of the low-rank matrix under Ky Fan norm
AIMS Mathematics, 2022 This paper considers the minimax perturbation bounds of the low-rank matrix under Ky Fan norm. We first explore the upper bounds via the best rank-$ r $ approximation $ \hat{A}_r $ of the observation matrix $ \hat{A} $.
Xinyu Qi, Jinru Wang, Jiating Shao
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Upper and lower bounds of solutions for fractional integral equations [PDF]
Surveys in Mathematics and its Applications, 2007 n this paper we consider the integral equation of fractional order in sense of Riemann-Liouville operator um(t) = a(t) Iα [b(t)u(t)]+f(t) with m ≥ 1, t ∈ [0, T], T < ∞ and 0< α
Rabha W. Ibrahim, Shaher Momani
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Some Refinements and Generalizations of I. Schur Type Inequalities
The Scientific World Journal, 2014 Recently, extensive researches on estimating the value of e have been studied. In this paper, the structural characteristics of I. Schur type inequalities are exploited to generalize the corresponding inequalities by variable parameter techniques.
Xian-Ming Gu +5 more
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Bounds of non-monotone complexity for the multi-valued logic functions
Учёные записки Казанского университета: Серия Физико-математические науки, 2020 The non-monotone complexity of realization of k-valued logic functions by circuits in a special basis was investigated. The basis consists of elements of two types: the first type comprises all monotone functions (with respect to the order 0 < 1 < 2
V.V. Kochergin, A.V. Mikhailovich
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Qualitative analysis on the electrohydrodynamic flow equation
AIMS MathematicsIn this paper, we present a comprehensive analysis of the lower and upper bounds of solutions for a nonlinear second-order ordinary differential equation governing the electrohydrodynamic flow of a conducting fluid in cylindrical conduits.
Lazhar Bougoffa +2 more
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NEW UPPER AND LOWER BOUNDS LINE OF SIGHT PATH LOSS MODELS FOR MOBILE PROPAGATION IN BUILDINGS
ASEAN Journal on Science and Technology for Development, 2017 This paper proposes a method to predict line-of-sight (LOS) path loss in buildings. We performed measurements in two different type of buildings at a frequency of 1.8 GHz and propose new upper and lower bounds path loss models which depend on max and min
Supachai Phaiboon +2 more
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Multiple Packing: Lower and Upper Bounds
, 2022 We study the problem of high-dimensional multiple packing in Euclidean space. Multiple packing is a natural generalization of sphere packing and is defined as follows. Let $ N>0 $ and $ L\in\mathbb{Z}_{\ge2} $. A multiple packing is a set $\mathcal{C}$ of points in $ \mathbb{R}^n $ such that any point in $ \mathbb{R}^n $ lies in the intersection of ...
Zhang, Yihan, Vatedka, Shashank
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A new sequence related to the Euler–Mascheroni constant
Journal of Inequalities and Applications, 2018 In this paper, we provide a new quicker sequence convergent to the Euler–Mascheroni constant using an approximation of Padé type. Our sequence has a relatively simple form and higher speed of convergence.
Shanhe Wu, Gabriel Bercu
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