• 제목/요약/키워드: Reverse inequality

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Reverse Inequalities through k-weighted Fractional Operators with Two Parameters

  • Bouharket Benaissa;Noureddine Azzouz
    • Kyungpook Mathematical Journal
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    • 제64권1호
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    • pp.31-46
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    • 2024
  • The aim of this paper is to present an approach to improve reverse Minkowski and Hölder-type inequalities using k-weighted fractional integral operators a+𝔍𝜇w with respect to a strictly increasing continuous function 𝜇, by introducing two parameters of integrability, p and q. For various choices of 𝜇 we get interesting special cases.

The Hilbert-Type Integral Inequality with the System Kernel of-λ Degree Homogeneous Form

  • Xie, Zitian;Zeng, Zheng
    • Kyungpook Mathematical Journal
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    • 제50권2호
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    • pp.297-306
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    • 2010
  • In this paper, the integral operator is used. We give a new Hilbert-type integral inequality, whose kernel is the homogeneous form with degree - $\lambda$ and with three pairs of conjugate exponents and the best constant factor and its reverse form are also derived. It is shown that the results of this paper represent an extension as well as some improvements of the earlier results.

On a Hilbert-Type Integral Inequality with a Combination Kernel and Applications

  • Yang, Bicheng
    • Kyungpook Mathematical Journal
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    • 제50권2호
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    • pp.281-288
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    • 2010
  • By introducing some parameters and using the way of weight function and the technic of real analysis and complex analysis, a new Hilbert-type integral inequality with a best constant factor and a combination kernel involving two mean values is given, which is an extension of Hilbert's integral inequality. As applications, the equivalent form and the reverse forms are considered.

ON STEFFENSEN INEQUALITY IN p-CALCULUS

  • Yadollahzadeh, Milad;Tourani, Mehdi;Karamali, Gholamreza
    • Korean Journal of Mathematics
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    • 제27권3호
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    • pp.803-817
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    • 2019
  • In this paper, we provide a new version of Steffensen inequality for p-calculus analogue in [17, 18] which is a generalization of previous results. Also, the conditions for validity of reverse to p-Steffensen inequalities are given. Lastly, we will obtain a generalization of p-Steffensen inequality to the case of monotonic functions.

ON THE ISOPERIMETRIC DEFICIT UPPER LIMIT

  • Zhou, Jiazu;Ma, Lei;Xu, Wenxue
    • 대한수학회보
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    • 제50권1호
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    • pp.175-184
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    • 2013
  • In this paper, the reverse Bonnesen style inequalities for convex domain in the Euclidean plane $\mathbb{R}^2$ are investigated. The Minkowski mixed convex set of two convex sets K and L is studied and some new geometric inequalities are obtained. From these inequalities obtained, some isoperimetric deficit upper limits, that is, the reverse Bonnesen style inequalities for convex domain K are obtained. These isoperimetric deficit upper limits obtained are more fundamental than the known results of Bottema ([5]) and Pleijel ([22]).

On Opial Type Inequalities with Nonlocal Conditions and Applications

  • Bougoffa, Lazhar;Daoud, Jamal Ibrahim
    • Kyungpook Mathematical Journal
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    • 제51권2호
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    • pp.165-175
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    • 2011
  • The purpose of this note is to give Opial type inequalities with nonlocal conditions. Also, a reverse of the original inequality with y(a) = y(b) = 0 is derived. We apply these inequalities to second-order differential equations with nonlocal conditions to derive several necessary conditions for the existence of solutions.

BOUNDS AND INEQUALITIES OF THE MODIFIED LOMMEL FUNCTIONS

  • Mondal, Saiful R.
    • 대한수학회논문집
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    • 제34권2호
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    • pp.573-583
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    • 2019
  • This article studies the monotonicity, log-convexity of the modified Lommel functions by using its power series and infinite product representation. Some properties for the ratio of the modified Lommel functions with the Lommel function, sinh and cosh are also discussed. As a consequence, $Tur{\acute{a}}n$ type and reverse $Tur{\acute{a}}n$ type inequalities are given. A Rayleigh type function for the Lommel functions are derived and as an application, we obtain the Redheffer-type inequality.

SUPERQUADRATIC FUNCTIONS AND REFINEMENTS OF SOME CLASSICAL INEQUALITIES

  • Banic, Senka;Pecaric, Josip;Varosanec, Sanja
    • 대한수학회지
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    • 제45권2호
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    • pp.513-525
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    • 2008
  • Using known properties of superquadratic functions we obtain a sequence of inequalities for superquadratic functions such as the Converse and the Reverse Jensen type inequalities, the Giaccardi and the Petrovic type inequalities and Hermite-Hadamard's inequalities. Especially, when the superquadratic function is convex at the same time, then we get refinements of classical known results for convex functions. Some other properties of superquadratic functions are also given.