Results 21 to 30 of about 2,050 (154)

Some new refinements of strengthened Hardy and Pólya–Knopp′s inequalities

open access: yesJournal of Function Spaces, Volume 7, Issue 2, Page 167-186, 2009., 2009
We prove a new general one‐dimensional inequality for convex functions and Hardy–Littlewood averages. Furthermore, we apply this result to unify and refine the so‐called Boas′s inequality and the strengthened inequalities of the Hardy–Knopp–type, deriving their new refinements as special cases of the obtained general relation. In particular, we get new
Aleksandra Čižmešija   +3 more
wiley   +1 more source

Improved Interpolation Inequalities and Stability

open access: yesAdvanced Nonlinear Studies, 2020
For exponents in the subcritical range, we revisit some optimal interpolation inequalities on the sphere with carré du champ methods and use the remainder terms to produce improved inequalities.
Dolbeault Jean, Esteban Maria J.
doaj   +1 more source

On some new quantum midpoint-type inequalities for twice quantum differentiable convex functions

open access: yesOpen Mathematics, 2021
The present paper aims to find some new midpoint-type inequalities for twice quantum differentiable convex functions. The consequences derived in this paper are unification and generalization of the comparable consequences in the literature on midpoint ...
Ali Muhammad Aamir   +4 more
doaj   +1 more source

On Bellman‐Golubov theorems for the Riemann‐Liouville operators

open access: yesJournal of Function Spaces, Volume 7, Issue 3, Page 289-300, 2009., 2009
Superposition of Fourier transform with the Riemann ‐ Liouville operators is studied.
Pham Tien Zung, Victor Burenkov
wiley   +1 more source

Opial type inequalities for double Riemann-Stieltjes integrals

open access: yesMoroccan Journal of Pure and Applied Analysis, 2018
In this paper, we establish some Opial type inequalities for Riemann-Stieltjes integrals of functions with two variables. The obtained inequalities generalize those previously demonstrated (see [2])
Budak Hüseyin
doaj   +1 more source

Montgomery identity and Ostrowski-type inequalities via quantum calculus

open access: yesOpen Mathematics, 2021
In this paper, we prove a quantum version of Montgomery identity and prove some new Ostrowski-type inequalities for convex functions in the setting of quantum calculus.
Sitthiwirattham Thanin   +4 more
doaj   +1 more source

Three weights higher order Hardy type inequalities

open access: yesJournal of Function Spaces, Volume 4, Issue 2, Page 163-191, 2006., 2006
We investigate the following three weights higher order Hardy type inequality (0.1) ‖g‖q,u≤C‖Dρkg‖p,v where Dρi denotes the following weighted differential operator: dig(t)dti,i=01…1,,,m-,di-mdti-m(p(t)dmg(t)dtm),i=m,m+1…,,k, for a weight function ρ(·). A complete description of the weights u, v and ρ so that (0.1) holds was given in [4] for the case 1
Aigerim A. Kalybay   +2 more
wiley   +1 more source

An inequality for first‐order differences

open access: yesJournal of Function Spaces, Volume 3, Issue 2, Page 117-124, 2005., 2005
A question about comparing norms of difference operators that was raised in [1] and presented at the Fourth ISAAC Congress is answered in the affirmative.
Gord Sinnamon, Victor Burenkov
wiley   +1 more source

New (p, q)-estimates for different types of integral inequalities via (α, m)-convex mappings

open access: yesOpen Mathematics, 2020
In the article, we present a new (p,q)(p,q)-integral identity for the first-order (p,q)(p,q)-differentiable functions and establish several new (p,q)(p,q)-quantum error estimations for various integral inequalities via (α,m)(\alpha ,m)-convexity. We also
Kalsoom Humaira   +4 more
doaj   +1 more source

On Volterra inequalities and their applications

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 3, Page 117-134, 2004., 2004
We present certain variants of two‐dimensional and n‐dimensional Volterra integral inequalities. In particular, generalizations of the Gronwall inequality are obtained. These results are applied in various problems for differential and integral equations.
Lechosław Hącia
wiley   +1 more source

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