Results 51 to 60 of about 11,287,559 (375)

Refinement and corrigendum of bounds of fractional integral operators containing Mittag-Leffler functions

open access: yesAIMS Mathematics, 2020
The main objective of this paper is to compute refinements of bounds of the generalized fractional integral operators containing an extended generalized Mittag-Leffler function in their kernels.
Ghulam Farid   +4 more
doaj   +1 more source

Non-existence of certain type of convex functions on a Riemannian manifold with a pole

open access: yes, 2018
This paper is devoted to the study of non-existence of certain type of convex functions on a Riemannian manifold with a pole. To this end, we have developed the notion of odd and even function on a Riemannian manifold with a pole and proved the non ...
Ahmad, Izhar   +2 more
core   +1 more source

Analysis of Hamilton-Jacobi-Bellman equations arising in stochastic singular control [PDF]

open access: yes, 2011
We study the partial differential equation max{Lu - f, H(Du)}=0 where u is the unknown function, L is a second-order elliptic operator, f is a given smooth function and H is a convex function.
Hynd, Ryan
core   +1 more source

Generalized Fractional Hadamard and Fejér–Hadamard Inequalities for Generalized Harmonically Convex Functions

open access: yesJournal of Mathematics, 2020
In this paper, we define a new function, namely, harmonically α,h−m-convex function, which unifies various kinds of harmonically convex functions.
Chahn Yong Jung   +4 more
doaj   +1 more source

New Generalization of Geodesic Convex Function

open access: yesAxioms, 2023
As a generalization of a geodesic function, this paper introduces the notion of the geodesic φE-convex function. Some properties of the φE-convex function and geodesic φE-convex function are established.
Ohud Bulayhan Almutairi, Wedad Saleh
doaj   +1 more source

Image Fusion via Sparse Regularization with Non-Convex Penalties

open access: yes, 2020
The L1 norm regularized least squares method is often used for finding sparse approximate solutions and is widely used in 1-D signal restoration. Basis pursuit denoising (BPD) performs noise reduction in this way.
Achim, Alin   +3 more
core   +1 more source

Ostrowski type inequalities via some exponentially convex functions with applications

open access: yesAIMS Mathematics, 2020
In this paper, we obtain ostrowski type inequalities for exponentially convex function and exponentially s-convex function in second sense. Applications to some special means are also obtain. Here we extend the results of some previous investigations.
Naila Mehreen, Matloob Anwar
doaj   +1 more source

On \(t\)-convex functions

open access: yes, 2003
Let \(t \in ]0,1[\). A real-valued function \(f\) defined on an interval \(I \subseteq \mathbb{R}\) is called \(t\)-convex if \(f(tx+(1-t)y) \leq tf(x)+(1-t)f(y)\) for all \(x,y \in I\). The authors show that such functions are characterized by the nonnegativity of their (suitably defined) lower second-order generalized derivatives.
Nikodem, Kazimierz, Páles, Zsolt
openaire   +2 more sources

On Bazilevič and convex functions [PDF]

open access: yesTransactions of the American Mathematical Society, 1969
(2) zf'(z) = f(z)'g(z)lh(z) and (3) Reh(z) = Re(zf'(z)/f(z)'1-,g(z)") > 0 in IzI < 1. Thomas [12] called a function satisfying the condition (3) a Bazilevic function of type /. Let C(r) denote the curve which is the image of the circle Izi =r < 1 under the mapping w =f(z), and let L(r) denote the length of C(r). Let M(r) = maxj2j = r I f(z) 1.
openaire   +1 more source

Approximately convex functions [PDF]

open access: yesProceedings of the American Mathematical Society, 1952
So far we have discussed the stability of various functional equations. In the present section, we consider the stability of a well-known functional inequality, namely the inequality defining convex functions: $$f\left( {\lambda x + \left( {1 - \lambda } \right)y} \right) \leqslant \lambda f\left( x \right) + \left( {1 - \lambda } \right)f\left( y \
Hyers, D. H., Ulam, S. M.
openaire   +2 more sources

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