Results 21 to 30 of about 334 (49)

On Hardy and Caffarelli-Kohn-Nirenberg inequalities [PDF]

open access: yes, 2017
We establish improved versions of the Hardy and Caffarelli-Kohn-Nirenberg inequalities by replacing the standard Dirichlet energy with some nonlocal nonconvex functionals which have been involved in estimates for the topological degree of continuous maps
Nguyen, Hoai-Minh, Squassina, Marco
core   +2 more sources

Conditionally approximately convex functions

open access: yesDemonstratio Mathematica, 2016
Let X be a real normed space, V be a subset of X and α: [0, ∞) → [0, ∞] be a nondecreasing function. We say that a function f : V → [−∞, ∞] is conditionally α-convex if for each convex combination ∑i=0ntivi$\sum\nolimits_{i = 0}^n {t_i v_i }$ of ...
Najdecki Adam, Tabor Józef
doaj   +1 more source

Hermite-Hadamard type inequalities for Wright-convex functions of several variables

open access: yes, 2014
We present Hermite--Hadamard type inequalities for Wright-convex, strongly convex and strongly Wright-convex functions of several variables defined on ...
Wasowicz, Sz., Śliwińska, D.
core   +2 more sources

Support theorems in abstract settings [PDF]

open access: yes, 2017
In this paper we establish a general framework in which the verification of support theorems for generalized convex functions acting between an algebraic structure and an ordered algebraic structure is still possible.
Olbryś, Andrzej, Páles, Zsolt
core   +2 more sources

On the characterization of Jensen m-convex polynomials

open access: yesMoroccan Journal of Pure and Applied Analysis, 2017
The main objective of this research is to characterize all the real polynomial functions of degree less than the fourth which are Jensen m-convex on the set of non-negative real numbers. In the first section, it is established for that class of functions
Lara Teodoro   +3 more
doaj   +1 more source

On an Open Problem by Feng Qi Regarding an Integral Inequality [PDF]

open access: yes, 2002
In the article, a functional inequality in abstract spaces is established, which gives a new affirmative answer to an open problem posed by Feng Qi in Several integral inequalities which appeared in J. Inequal. Pure Appl. Math. 1 (2000), no. 2, Art. 19.
Mazouzi, S, Qi, Feng
core  

A martingale bound for the entropy associated with a trimmed filtration on $\mathbb {R}^d$

open access: yes, 2015
Using martingale methods, we provide bounds for the entropy of a probability measure on $\mathbb {R}^d$ with the right-hand side given in a certain integral form.
Kulik, Alexei, Tymoshkevych, Taras
core   +1 more source

Characterizations of higher-order convexity properties with respect to Chebyshev systems

open access: yes, 2015
In this paper various notions of convexity of real functions with respect to Chebyshev systems defined over arbitrary subsets of the real line are introduced.
Páles, Zsolt   +1 more
core   +1 more source

An analysis of exponential kernel fractional difference operator for delta positivity

open access: yesNonlinear Engineering
Positivity analysis for a fractional difference operator including an exponential formula in its kernel has been examined. A composition of two fractional difference operators of order (ν,μ)\left(\nu ,\mu ) in the sense of Liouville–Caputo type operators
Mohammed Pshtiwan Othman
doaj   +1 more source

Existence of maximizers for Hardy-Littlewood-Sobolev inequalities on the Heisenberg group [PDF]

open access: yes, 2013
In this paper, we investigate the sharp Hardy-Littlewood-Sobolev inequalities on the Heisenberg group. On one hand, we apply the concentration compactness principle to prove the existence of the maximizers. While the approach here gives a different proof
Han, Xiaolong
core  

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