Results 11 to 20 of about 770,647 (275)

Generalized convexity and inequalities

open access: yesJournal of Mathematical Analysis and Applications, 2007
17 ...
Matti Vuorinen
exaly   +4 more sources

On a generalization of close-to-convexity [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1983
A class Tk of analytic functions in the unit disc is defined in which the concept of close-to-convexity is generalized. A necessary condition for a function f to belong to Tk, raduis of convexity problem and a coefficient result are solved in this paper.
K. Inayat Noor
doaj   +4 more sources

ON THE GENERALIZED CONVEXITY AND CONCAVITY

open access: yesПроблемы анализа, 2015
A function ƒ : R+ → R+ is (m1, m2)-convex (concave) if ƒ(m1(x,y)) ≤ (≥) m2(ƒ(x), ƒ(y)) for all x,y Є R+ = (0,∞) and m1 and m2 are two mean functions. Anderson et al.
Bhayo B., Yin L.
doaj   +5 more sources

Logarithmic Convexity of the One-Parameter Mean Values [PDF]

open access: yes, 2004
In this article, the logarithmic convexity of the one-parameter mean values J(r) and the monotonicity of the product J(r)J(−r) with r Є R are presented. Some more general results are established.
Qi, Feng, Cheung, Wing Sum
core   +6 more sources

Schur-convexity of the Extended Mean Values [PDF]

open access: yes, 2001
In this article, the Schur-convexity of the extended mean values are proved. Consequently, an inequality between the logarithmic mean values and the identity (exponential) mean values is ...
Qi, Feng
core   +6 more sources

Jensen, Hermite–Hadamard, and Fejér-Type Inequalities for Reciprocally Strongly (h, s)-Convex Functions

open access: yesJournal of Mathematics, 2023
This paper aims to present a generalized and extended notation of convexity by unifying reciprocally strong convexity with h,s−convexity. We introduce the concept of reciprocally strongly h,s−convex functions and establish some of their fundamental ...
Yujun Wang   +3 more
doaj   +1 more source

Convexity of Bẻzier nets on sub-triangles [PDF]

open access: yes, 1990
This note generalizes a result of Goodman[3], where it is shown that the convexity of Bèzier nets defined on a base triangle is preserved on sub-triangles obtained from a mid-point subdivision process.
Gregory, JA, Zhou, J
core   +6 more sources

Robust Nonsmooth Interval-Valued Optimization Problems Involving Uncertainty Constraints

open access: yesMathematics, 2022
In this paper, Karush-Kuhn-Tucker type robust necessary optimality conditions for a robust nonsmooth interval-valued optimization problem (UCIVOP) are formulated using the concept of LU-optimal solution and the generalized robust Slater constraint ...
Rekha R. Jaichander   +3 more
doaj   +1 more source

Advances in Ostrowski-Mercer Like Inequalities within Fractal Space

open access: yesFractal and Fractional, 2023
The main idea of the current investigation is to explore some new aspects of Ostrowski’s type integral inequalities implementing the generalized Jensen–Mercer inequality established for generalized s-convexity in fractal space.
Miguel Vivas-Cortez   +4 more
doaj   +1 more source

A general framework for path convexities [PDF]

open access: yesJournal of Combinatorial Optimization, 2019
In this work we deal with the so-called path convexities, defined over special collections of paths. For example, the collection of the shortest paths in a graph is associated with the well-known geodesic convexity, while the collection of the induced paths is associated with the monophonic convexity; and there are many other examples.
João Vinicius C. Thompson   +5 more
openaire   +5 more sources

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