Results 1 to 10 of about 56,471 (243)

Upper and lower bounds for the Bregman divergence [PDF]

open access: yesJournal of Inequalities and Applications, 2019
In this paper we study upper and lower bounds on the Bregman divergence ΔFξ(y,x):=F(y)−F(x)−〈ξ,y−x〉 $\Delta_{\mathcal {F}}^{\xi }(y,x):=\mathcal {F}(y)-\mathcal {F}(x)- \langle \xi , y-x \rangle$ for some convex functional F $\mathcal {F}$ on a normed ...
Benjamin Sprung
doaj   +2 more sources

Estimation of upper and lower bounds of Gini coefficient by fuzzy data [PDF]

open access: yesData in Brief, 2020
The data presented in this paper are used to examine the uncertainty in macroeconomic variables and their impact on the Gini coefficient. Annual data for the period 2017 - 1996 are taken from the Bank of Iran website https://www.cbi.ir.
Reza Ashraf Ganjoei   +3 more
doaj   +2 more sources

Quantum SDP-Solvers: Better upper and lower bounds [PDF]

open access: yesQuantum, 2020
Brandão and Svore \cite{brandao2016QSDPSpeedup} recently gave quantum algorithms for approximately solving semidefinite programs, which in some regimes are faster than the best-possible classical algorithms in terms of the dimension $n$ of the problem ...
Joran van Apeldoorn   +3 more
doaj   +1 more source

Asian Option Pricing Based on the Standardized Logarithm of Geometric Average [PDF]

open access: yesفصلنامه پژوهش‌های اقتصادی ایران, 2015
An Asian option (or average value option) is a special type of option contract‎. ‎Its payoff is determined by the average underlying price over some pre-set period of time. ‎Asian option is hard to price analytically and numerically‎.
Abdolrahim Badamchizadeh, Narges Heydari
doaj   +1 more source

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

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

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

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

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

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