Results 41 to 50 of about 58,584 (207)

Optimal consumption and portfolio selection with lower and upper bounds on consumption

open access: yesAdvances in Difference Equations, 2020
We investigate the optimal consumption and investment problem with lower and upper bounds on consumption constraints. We derive closed-form solutions by means of the dynamic programming approach.
Kum-Hwan Roh, Yong Hyun Shin
doaj   +1 more source

On the Achievable Stabilization Delay Margin for Linear Plants with Time-Varying Delays

open access: yesMathematics, 2017
The paper contributes to stabilization problems of linear systems subject to time-varying delays. Drawing upon small gain criteria and robust analysis techniques, upper and lower bounds on the largest allowable time-varying delay are developed by using ...
Jing Zhu
doaj   +1 more source

Tight bounds for the median of a gamma distribution.

open access: yesPLoS ONE, 2023
The median of a standard gamma distribution, as a function of its shape parameter k, has no known representation in terms of elementary functions. In this work we prove the tightest upper and lower bounds of the form 2-1/k(A + k): an upper bound with A =
Richard F Lyon
doaj   +1 more source

An Upper Bound on the Error Induced by Saddlepoint Approximations—Applications to Information Theory

open access: yesEntropy, 2020
This paper introduces an upper bound on the absolute difference between: ( a ) the cumulative distribution function (CDF) of the sum of a finite number of independent and identically distributed random variables with finite absolute third moment;
Dadja Anade   +3 more
doaj   +1 more source

Lower and Upper Bounds on Obtaining History Independence [PDF]

open access: yesInformation and Computation, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Buchbinder, Niv, Petrank, Erez
openaire   +1 more source

Young's integral inequality with upper and lower bounds

open access: yesElectronic Journal of Differential Equations, 2011
Young's integral inequality is reformulated with upper and lower bounds for the remainder. The new inequalities improve Young's integral inequality on all time scales, such that the case where equality holds becomes particularly transparent in this ...
Douglas R. Anderson   +2 more
doaj  

Upper and Lower Bounds on Black-Box Steganography [PDF]

open access: yesJournal of Cryptology, 2005
We study the limitations of steganography when the sender is not using any properties of the underlying channel beyond its entropy and the ability to sample from it. On the negative side, we show that the number of samples the sender must obtain from the channel is exponential in the rate of the stegosystem.
Dedić, Nenad   +3 more
openaire   +4 more sources

Independence number in graphs and its upper bounds [PDF]

open access: yesJournal of Mahani Mathematical Research
‎In this paper, we use the double counting method to find some upper bounds for the independence number of a simple graph in terms of its order, size and  maximum degree.   Moreover,  we determine extremal graphs attaining equality in upper bounds.
Farzad Shaveisi
doaj   +1 more source

Upper and lower bounds of integral operator defined by the fractional hypergeometric function

open access: yesOpen Mathematics, 2015
In this article, we impose some studies with applications for generalized integral operators for normalized holomorphic functions. By using the further extension of the extended Gauss hypergeometric functions, new subclasses of analytic functions ...
Ibrahim Rabha W.   +2 more
doaj   +1 more source

Bounds for the Z-eigenpair of general nonnegative tensors

open access: yesOpen Mathematics, 2016
In this paper, we consider the Z-eigenpair of a tensor. A lower bound and an upper bound for the Z-spectral radius of a weakly symmetric nonnegative irreducible tensor are presented.
Liu Qilong, Li Yaotang
doaj   +1 more source

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