Results 21 to 30 of about 156,468 (326)

New Upper Bounds in the Second Kershaw's Double Inequality and its Generalizations [PDF]

open access: yes, 2007
In the paper, new upper bounds in the second Kershaw’s double inequality and its generalizations involving the gamma, psi and polygamma functions are established, some known results are ...
Guo, Senlin, Qi, Feng
core   +6 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   +4 more sources

Inverse Minimum Cut Problem with Lower and Upper Bounds

open access: yesMathematics, 2020
The inverse minimum cut problem is one of the classical inverse optimization researches. In this paper, the inverse minimum cut with a lower and upper bounds problem is considered. The problem is to change both, the lower and upper bounds on arcs so that
Adrian Deaconu, Laura Ciupala
doaj   +1 more source

Estimating Quantum Mutual Information of Continuous-Variable Quantum States by Measuring Purity and Covariance Matrix

open access: yesEntropy, 2022
We derive accessible upper and lower bounds for continuous-variable (CV) quantum states on quantum mutual information. The derivations are based on the observation that some functions of purities bound the difference between quantum mutual information of
Jiyong Park
doaj   +1 more source

Global and blow-up solutions for a nonlinear reaction diffusion equation with Robin boundary conditions

open access: yesBoundary Value Problems, 2020
In the paper, we investigate global and blow-up solutions for a class of nonlinear reaction diffusion equations with Robin boundary conditions. By using auxiliary functions and a first-order differential inequality technique, we establish conditions on ...
Huimin Tian, Lingling Zhang
doaj   +1 more source

Comparison of an improved self-consistent lower bound theory with Lehmann’s method for low-lying eigenvalues

open access: yesScientific Reports, 2021
Ritz eigenvalues only provide upper bounds for the energy levels, while obtaining lower bounds requires at least the calculation of the variances associated with these eigenvalues. The well-known Weinstein and Temple lower bounds based on the eigenvalues
Miklos Ronto   +2 more
doaj   +1 more source

Lower and Upper Bounds of Fractional Metric Dimension of Connected Networks

open access: yesFractal and Fractional, 2021
The distance centric parameter in the theory of networks called by metric dimension plays a vital role in encountering the distance-related problems for the monitoring of the large-scale networks in the various fields of chemistry and computer science ...
Muhammad Javaid   +5 more
doaj   +1 more source

Classical Lower Bounds from Quantum Upper Bounds [PDF]

open access: yes2018 IEEE 59th Annual Symposium on Foundations of Computer Science (FOCS), 2018
46 pages; to appear at FOCS ...
Shalev Ben-David   +3 more
openaire   +2 more sources

Tail Bounds for the Wiener Index of Random Trees [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2007
Upper and lower bounds for the tail probabilities of the Wiener index of random binary search trees are given. For upper bounds the moment generating function of the vector of Wiener index and internal path length is estimated.
Tämur Ali Khan, Ralph Neininger
doaj   +1 more source

Improving bounds on packing densities of 4-point permutations [PDF]

open access: yesDiscrete 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
doaj   +1 more source

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