Results 51 to 60 of about 902,467 (342)

On matrix inequalities between the power means: Counterexamples

open access: yesLinear Algebra and its Applications, 2013
We prove that the known sufficient conditions on the real parameters $(p,q)$ for which the matrix power mean inequality $((A^p+B^p)/2)^{1/p}\le((A^q+B^q)/2)^{1/q}$ holds for every pair of matrices $A,B>0$ are indeed best possible. The proof proceeds by constructing $2\times2$ counterexamples. The best possible conditions on $(p,q)$ for which $ (A^p)
Koenraad M.R. Audenaert, Fumio Hiai
openaire   +3 more sources

Some Bullen-Simpson type inequalities for differentiable s-convex functions [PDF]

open access: yesMathematica Moravica
Convexity is one of the fundamental principles of analysis. Over the past few decades, many important inequalities have been established for different classes of convex functions.
Meftah Badreddine, Samoudi Sara
doaj   +1 more source

Some New Bullen-Type Inequalities Obtained via Fractional Integral Operators

open access: yesAxioms, 2023
In this paper, we establish a new auxiliary identity of the Bullen type for twice-differentiable functions in terms of fractional integral operators.
Asfand Fahad   +4 more
doaj   +1 more source

Ostrowski's inequalities for functions whose first derivatives are s-logarithmically preinvex in the second sense [PDF]

open access: yesMathematica Moravica, 2018
In this paper, some Ostrowski's inequalities for functions whose first derivatives are s-logarithmically preinvex in the second sense are established.
Badreddine Meftah
doaj  

Some new inequalities for (α,m1,m2 )-GA convex functions

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
In this manuscript, firstly we introduce and study the concept of (α,m_1,m_2 )-Geometric-Arithmetically (GA) convex functions and some algebraic properties of such type functions.
Mahir Kadakal
doaj   +1 more source

Fractional Hermite–Hadamard-Type Inequalities for Differentiable Preinvex Mappings and Applications to Modified Bessel and q-Digamma Functions

open access: yesMathematical and Computational Applications, 2023
The theory of convexity pertaining to fractional calculus is a well-established concept that has attracted significant attention in mathematics and various scientific disciplines for over a century.
Muhammad Tariq   +5 more
doaj   +1 more source

Redistribution, power sharing and inequality concern

open access: yesSocial Choice and Welfare, 2020
We analyze a political competition model of redistributive policies. We provide an equilibrium existence result and a full characterization of the net transfers to the different income groups.
Dario Debowicz, A. Saporiti, Yizhi Wang
semanticscholar   +1 more source

Generalization of the power means and their inequalities

open access: yesJournal of Mathematical Analysis and Applications, 1991
The paper contains a generalization of the power means which includes a class of positive nonlinear functionals. For these new means the author obtains generalizations of the fundamental mean inequality, Hölder's, Minkowski's and related inequalities.
openaire   +3 more sources

Some companions of Ostrowski type inequality for functions whose second derivatives are convex and concave with applications

open access: yesArab Journal of Mathematical Sciences, 2015
In this paper, we obtain some companions of Ostrowski type inequality for absolutely continuous functions whose second derivatives absolute values are convex and concave. Finally, we give some applications for special means.
M. Emin Özdemir, Merve Avci Ardic
doaj   +1 more source

Amplitude and Sign Adjustment for Peak-to-Average-Power Reduction [PDF]

open access: yes, 2005
In this letter, we propose a method to reduce the peak-to-mean-envelope-power ratio (PMEPR) of multicarrier signals by modifying the constellation. For$M$-ary phase-shift keying constellations, we minimize the maximum of the multicarrier signal over the ...
Fazel, Maryam   +3 more
core   +2 more sources

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