17 research outputs found

    Unified treatment of fractional integral inequalities via linear functionals

    Get PDF
    In the paper we prove several inequalities involving two isotonic linear functionals. We consider inequalities for functions with variable bounds, for Lipschitz and H\" older type functions etc. These results give us an elegant method for obtaining a number of inequalities for various kinds of fractional integral operators such as for the Riemann-Liouville fractional integral operator, the Hadamard fractional integral operator, fractional hyperqeometric integral and corresponding q-integrals

    Generalized quasi-Banach sequence spaces and measures of noncompactness

    Get PDF
    Given 0 &lt; s &#8804; 1 and &#968; an s-convex function, s &#8211; &#968; -sequence spaces are introduced. Several quasi-Banach sequence spaces are thus characterized as a particular case of s &#8211; &#968; -spaces. For these spaces, new measures of noncompactness are also defined, related to the Hausdorff measure of noncompactness. As an application, compact sets in s &#8211; &#968; -interpolation spaces of a quasi-Banach couple are studied.Dado 0 < s ? 1 e uma função s-convexa ?, os espaços de sequencias s – ? são introduzidos. Vários espaços quase-Banach de sequencias são assim caracterizados como um caso particular dos espaços s – ?. Para esses espaços novas medidas de não compacidade são também definidas, relacionadas a medida de não compacidade de Hausdorff. Como uma aplicação, conjuntos compactos nos espa, cos de interpolação s – ?, de um par quase-Banach são estudados.44345

    A new look at classical inequalities involving Banach lattice norms

    Get PDF
    Some classical inequalities are known also in a more general form of Banach lattice norms and/or in continuous forms (i.e., for ‘continuous’ many functions are involved instead of finite many as in the classical situation). The main aim of this paper is to initiate a more consequent study of classical inequalities in this more general frame. We already here contribute by discussing some results of this type and also by deriving some new results related to classical Popoviciu’s, Bellman’s and Beckenbach-Dresher’s inequalitie

    Some new refinements of the Young, Hölder, and Minkowski inequalities

    Get PDF
    We prove and discuss some new refined Hölder inequalities for any p&gt; 1 and also a reversed version for 0 &lt; p&lt; 1. The key is to use the concepts of superquadraticity, strong convexity, and to first prove the corresponding refinements of the Young and reversed Young inequalities. Refinements of the Minkowski and reversed Minkowski inequalities are also given.

    Continuous refinements of some Jensen-type inequalities via strong convexity with applications

    Get PDF
    In this paper we prove new continuous refinements of some Jensen type inequalities in both direct and reversed forms. As applications we also derive some continuous refinements of Hermite-Hadamard, Holder, and Popoviciu type inequalities. As particular cases we point out the corresponding results for sums and integrals showing that our results contain both several well-known but also some new results for these special cases

    On n-th James and Khintchine constants of Banach spaces

    No full text
    For any Banach space X the n-th James constants J(n)(X) and the n-th Khintchine constants K-p,q(n)(X) are investigated and discussed. Some new properties of these constants are presented. The main result is an estimate of the n-th Khintchine constants K-p,q(n)(X) by the n-th James constants Jn (X). In the case of n = 2 and p = q = 2 this estimate is even stronger and improvs an earlier estimate proved by Kato-Maligranda-TakahashiValiderad; 2008; 20080331 (evan)</p
    corecore