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Lower Bounds on Multivariate Higher Order Derivatives of Differential Entropy [PDF]

open access: yesEntropy, 2022
This paper studies the properties of the derivatives of differential entropy H(Xt) in Costa’s entropy power inequality. For real-valued random variables, Cheng and Geng conjectured that for m≥1, (−1)m+1(dm/dtm)H(Xt)≥0, while McKean conjectured a stronger
Laigang Guo   +2 more
doaj   +2 more sources

IPDT Model-Based Ziegler–Nichols Tuning Generalized to Controllers with Higher-Order Derivatives [PDF]

open access: yesSensors, 2023
The paper extends the earlier work entitled “Making the PI and PID Controller Tuning Inspired by Ziegler and Nichols Precise and Reliable”, to higher-order controllers and a broader range of experiments.
Pavol Bistak   +3 more
doaj   +2 more sources

An Expansion Formula with Higher-Order Derivatives for Fractional Operators of Variable Order [PDF]

open access: yesThe Scientific World Journal, 2013
We obtain approximation formulas for fractional integrals and derivatives of Riemann-Liouville and Marchaud types with a variable fractional order. The approximations involve integer-order derivatives only. An estimation for the error is given.
Ricardo Almeida, Delfim F. M. Torres
doaj   +2 more sources

Subordination for Higher-Order Derivatives of Multivalent Functions [PDF]

open access: yesJournal of Inequalities and Applications, 2009
Differential subordination methods are used to obtain several interesting subordination results and best dominants for higher-order derivatives of p-valent functions. These results are next applied to yield various known results as special cases.
V. Ravichandran   +2 more
doaj   +4 more sources

New formulae for higher order derivatives and applications

open access: yesJournal of Computational and Applied Mathematics, 2009
New formulae for the analytical development of higher order derivatives are presented. The formulae are analytic and exact and represent the \(k\)-th derivative as a discrete sum of \(k+1\) terms. The coefficients occurring in the sums can be computed by recursion.
Hassan Safouhi
exaly   +2 more sources

Applications of Higher-Order Derivatives to the Subclasses of ‎Meromorphic Starlike Functions [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In this paper, we introduce and study some new classes of multivalent (p -valent) meromorphically starlike functions involving Higher-Order derivatives. For these multivalent classes of functions, we derive several interesting properties including sharp ...
Bilal Khan   +5 more
doaj   +1 more source

Superpotentials and higher order derivations [PDF]

open access: yesJournal of Pure and Applied Algebra, 2010
23 ...
Bocklandt, Raf   +2 more
openaire   +6 more sources

Ostrowski Type Inequalities for Higher-Order Derivatives

open access: yesJournal of Inequalities and Applications, 2009
This paper has shown some new Ostrowski type inequalities involving higher-order derivatives. The results generalized the Ostrowski type inequalities. Applications of the inequalities are also given.
Zhao Xilai, Wang Mingjin
doaj   +2 more sources

Characterizations of weighted dynamic Hardy-type inequalities with higher-order derivatives

open access: yesJournal of Inequalities and Applications, 2021
In this paper, we establish some necessary and sufficient conditions for the validity of a generalized dynamic Hardy-type inequality with higher-order derivatives with two different weighted functions on time scales.
S. H. Saker, R. R. Mahmoud, K. R. Abdo
doaj   +1 more source

Starlike Functions of Complex Order with Respect to Symmetric Points Defined Using Higher Order Derivatives

open access: yesFractal and Fractional, 2022
In this paper, we introduce and study a new subclass of multivalent functions with respect to symmetric points involving higher order derivatives. In order to unify and extend various well-known results, we have defined the class subordinate to a conic ...
Kadhavoor R. Karthikeyan   +4 more
doaj   +1 more source

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