Results 11 to 20 of about 56,471 (243)
Improving bounds on packing densities of 4-point permutations [PDF]
Discrete Mathematics & Theoretical Computer Science, 2018 We consolidate what is currently known about packing densities of 4-point permutations and in the process improve the lower bounds for the packing densities of 1324 and 1342.
Jakub Sliacan, Walter Stromquist
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Method of intermediate problems in the theory of Gaussian quantum dots placed in a magnetic field
Condensed Matter Physics, 2006 Applicability of the method of intermediate problems to the investigation of the energy eigenvalues and eigenstates of a quantum dot (QD) formed by a Gaussian confining potential in the presence of an external magnetic field is discussed. Being smooth at
A.V.Soldatov +2 more
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Some lower and upper bounds on the third ABC index
AKCE 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
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AIMS Mathematics, 2021 Recently, a generalization of convex function called exponentially (α,h−m)-convex function has been introduced. This generalization of convexity is used to obtain upper bounds of fractional integral operators involving Mittag-Leffler (ML) functions ...
Maryam Saddiqa +4 more
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Lower and upper bounds for entanglement of Rényi-α entropy
Scientific 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
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Dependence Uncertainty Bounds for the Expectile of a Portfolio
Risks, 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
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Lower and upper bounds of shortest paths in reachability graphs
International 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
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Gilbreath Equation, Gilbreath Polynomials, and Upper and Lower Bounds for Gilbreath Conjecture
Mathematics, 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
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New upper and lower bounds for the upper incomplete gamma function
Results in Applied MathematicsSome new upper and lower bounds for the upper incomplete gamma function Γ(a,x) are presented. Some of the bounds are given for all real x>0 and some are for only certain combinations of a and x.
Steven G. From, Suthakaran Ratnasingam
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The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada
Population Ecology, EarlyView.We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
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