Results 31 to 40 of about 3,706 (120)

Some companion inequalities to Jensen's inequality [PDF]

open access: yesMathematical Inequalities & Applications, 2000
The authors obtain some new companion inequalities to Jensen's inequality (discrete or integral). The main results are given in a very general and abstract setting, for convex functions defined on an open convex set of a normed linear space. The differentiable cases, as well as sharpness questions are also considered.
Matić, M., Pečarić, J.
openaire   +2 more sources

New estimates for generalized Shannon and Zipf-Mandelbrot entropies via convexity results

open access: yesResults in Physics, 2020
Shannon and Zipf-Mandelbrot entropies have several applications in various fields such as ecology, statistics, physics and information theory etc. The aim of this article is to utilize some results of Jensen’s inequality for convex functions and to ...
Khurshid Ahmad   +4 more
doaj   +1 more source

Monotone trace functions of several variables

open access: yes, 2005
We investigate monotone operator functions of several variables under a trace or a trace-like functional. In particular, we prove the inequality \tau(x_1... x_n)\le\tau(y_1...
Hansen, Frank
core   +1 more source

Another Converse of Jensen's Inequality [PDF]

open access: yes, 2009
We give the best possible global bounds for a form of discrete Jensen’s inequality.
Simic, Slavko
core  

The Hadamard Determinant Inequality - Extensions to Operators on a Hilbert Space

open access: yes, 2017
A generalization of classical determinant inequalities like Hadamard's inequality and Fischer's inequality is studied. For a version of the inequalities originally proved by Arveson for positive operators in von Neumann algebras with a tracial state, we ...
Nayak, Soumyashant
core   +1 more source

A Refinement of Jensen’s and Minkowski’s Inequalities via Superquadratic Functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences
We provide in this note a different refinement of Jensen’s inequality obtained via superquadratic functions. A refinement of Minkowski’s and Hölder’s inequalities is also established as an application of our refined Jensen’s inequality.
Anton Asare-Tuah, Edward Prempeh
doaj   +1 more source

An operator inequality related to Jensen’s inequality [PDF]

open access: yesProceedings of the American Mathematical Society, 2001
Summary: For bounded non-negative operators \(A\) and \(B\), Furuta showed \[ 0\leq A \leq B \text{ implies } A^{\frac{r}{2}}B^sA^{\frac{r}{2}} \leq (A^{\frac{r}{2}}B^tA^{\frac{r}{2}})^{\frac{s+r}{t+r}}\quad (0\leq r, 0\leq s \leq t).
openaire   +2 more sources

Structural results on convexity relative to cost functions

open access: yes, 2012
Mass transportation problems appear in various areas of mathematics, their solutions involving cost convex potentials. Fenchel duality also represents an important concept for a wide variety of optimization problems, both from the theoretical and the ...
A. Karakhanyan   +13 more
core   +1 more source

Jensen's Functionals on Time Scales

open access: yesJournal of Function Spaces and Applications, 2012
We consider Jensen’s functionals on time scales and discuss its properties and applications. Further, we define weighted generalized and power means on time scales.
Matloob Anwar   +3 more
doaj   +1 more source

Thermodynamic Limit for Finite Dimensional Classical and Quantum Disordered Systems

open access: yes, 2004
We provide a very simple proof for the existence of the thermodynamic limit for the quenched specific pressure for classical and quantum disordered systems on a $d$-dimensional lattice, including spin glasses.
CRISTIAN GIARDINÀ   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy