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A new approach to Hardy-type inequalities. (English) Zbl 1318.26046

In this paper, the author introduced a new method to prove a general weighted Hardy-type inequality on the halfline. This new method allowed the deduction of a given estimate from the existence of a certain special function which posses appropriate domination and monotonicity properties. As an application, a new proof of the classical Hardy type inequality obtained by G. A. Bliss [J. Lond. Math. Soc. 5, 40–46 (1930; JFM 56.0434.02)] was presented.

MSC:

26D15 Inequalities for sums, series and integrals
26D10 Inequalities involving derivatives and differential and integral operators
26A46 Absolutely continuous real functions in one variable

Citations:

JFM 56.0434.02

References:

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[3] Hardy G. H., Littlewood J. E.: Notes on the theory of series (XII): On certain inequalities connected with calculus of variations. J. London Math. Soc. 5, 34-39 (1930) · JFM 56.0434.01 · doi:10.1112/jlms/s1-5.1.34
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