Reversed Weighted Hardy-type Inequalities with Negative Indices

Authors

DOI:

https://doi.org/10.31489/2026m1/5-22

Keywords:

time scales, dynamic inequalities, reverse Hardy inequality, negative exponents, delta differentiation, Keller’s rule, reverse time scale H¨older’s inequality, integral time scale Minkowski’s inequality

Abstract

This research paper presents a comprehensive investigation of novel Hardy-type dynamic inequalities that incorporate two independent weight functions, denoted as u and v. A distinctive feature of this work is its focus on time scales calculus with negative parameters, a generalization that unifies and extends discrete and continuous analysis. The basic methodology involves the application of the reverse Ho¨lder’s inequality and the Minkowski integral inequality to rigorously deduce all essential results. To illustrate the adaptability of our results, we provide explicit examples of the corresponding discrete and integral analogues for various time scales: when T=N (the natural numbers, indicating discrete sequences), T= lN0 for l > 1 (a quantum time scale), and T=R (the real numbers, signifying the classical continuous case). This paper situates its findings within a wider mathematical framework by demonstrating how they contain and extend certain cases of reverse Hardy-type dynamic inequalities previously formulated by distinguished scholars including Prokhorov, Kufner, Yang, Nguyen, and Benaissa. Consequently, this work presents a cohesive framework that broadens the theoretical terrain of Hardy-type inequalities.

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Published

30.03.2026

How to Cite

Abdo, K.R. (2026). Reversed Weighted Hardy-type Inequalities with Negative Indices. Bulletin of the Karaganda University. Mathematics Series, 1(121), 5–22. https://doi.org/10.31489/2026m1/5-22

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MATHEMATICS