Results 21 to 30 of about 60,982 (263)

Multiple Packing: Lower and Upper Bounds

open access: yesCoRR, 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 ...
Yihan Zhang 0001, Shashank Vatedka
openaire   +2 more sources

Lower and Upper Bounds for Linkage Discovery [PDF]

open access: yesIEEE Transactions on Evolutionary Computation, 2009
For a real-valued function f defined on {0,1}n , the linkage graph of f is a hypergraph that represents the interactions among the input variables with respect to f . In this paper, lower and upper bounds for the number of function evaluations required to discover the linkage graph are rigorously analyzed in the black box scenario. First, a lower bound
Choi, SS   +2 more
openaire   +3 more sources

Some lower and upper bounds on the third ABC index

open access: yesAKCE International Journal of Graphs and Combinatorics, 2016
Atom-bond connectivity (ABC) index has been applied up to now to study the stability of alkanes and the strain energy of cycloalkanes. Graovac defined the second ABC index as ABC2(G)=∑vivj∈E(G)1ni+1nj−2ninj, and Kinkar studied the upper bounds.
Dae-Won Lee
doaj   +1 more source

Upper and lower bounds on gravitational entropy [PDF]

open access: yesJournal of Cosmology and Astroparticle Physics, 2008
The gravitational entropy of the Universe is large and subtle to calculate. A lower bound is well known from supermassive black holes at the centers of galaxies, but the remainder is harder to pin down. A parametric model of clumped matter entropy is provided.
Frampton, Paul H., Kephart, Thomas W.
openaire   +2 more sources

Lower and upper bounds for entanglement of Rényi-α entropy

open access: yesScientific Reports, 2016
Entanglement Rényi-α entropy is an entanglement measure. It reduces to the standard entanglement of formation when α tends to 1. We derive analytical lower and upper bounds for the entanglement Rényi-α entropy of arbitrary dimensional bipartite quantum ...
Wei Song, Lin Chen, Zhuo-Liang Cao
doaj   +1 more source

Dependence Uncertainty Bounds for the Expectile of a Portfolio

open access: yesRisks, 2015
We study upper and lower bounds on the expectile risk measure of risky portfolios when the joint distribution of the risky components is not fully specified.
Edgars Jakobsons, Steven Vanduffel
doaj   +1 more source

Lower and upper bounds of shortest paths in reachability graphs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
We prove the following property for safe marked graphs, safe conflict-free Petri nets, and live and safe extended free-choice Petri nets. We prove the following three results. If the Petri net is a marked graph, then the length of the shortest path is at
P. K. Mishra
doaj   +1 more source

Gilbreath Equation, Gilbreath Polynomials, and Upper and Lower Bounds for Gilbreath Conjecture

open access: yesMathematics, 2023
Let S=s1,…,sn be a finite sequence of integers. Then, S is a Gilbreath sequence of length n, S∈Gn, iff s1 is even or odd and s2,…,sn are, respectively, odd or even and minKs1,…,sm≤sm+1≤maxKs1,…,sm,∀m∈1,n.
Riccardo Gatti
doaj   +1 more source

Upper and Lower Bounds of Scattering Phases [PDF]

open access: yesProgress of Theoretical Physics, 1951
A general method is developed for a rigorous estimation to upper and lower bounds of scattering phases in the variational methods applied to one-dimensional problems. It is also possible to estimate the mean error of the approximate wave function itself.
openaire   +2 more sources

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