Generalized dynamic inequalities similar to Hardy’s inequality involving a convex function on time scales
DOI: https://doi.org/10.3846/mma.2026.24795Abstract
In this paper, we establish some new generalizations of dynamic inequalities similar to Hardy's inequality on a time scale $\mathbb{T}$, by applying Jensen's inequality, integration by parts and chain rule on time scales. In particular, when $\mathbb{T}=\mathbb{R}$, we get the classical inequalities known from the literature, while in the discrete case $\mathbb{T}=\mathbb{N}$, the obtained inequalities are essentially new. In addition, we show that our results are more accurate than some recent dynamic inequalities known from the literature. Finally, we establish the corresponding relations in quantum calculus, when $\mathbb{T}=q^{\mathbb{N}_{0}}$, $q>1$.
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Hardy-type inequalities, time scales, Jensen's inequality, chain ruleHow to Cite
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References
R.P. Agarwal, D. O’Regan and S.H. Saker. Hardy type inequalities on time scales. Springer, 2016. https://doi.org/10.1007/978-3-319-44299-0
L. Akın. On some inequalities for exponentially weighted fractional Hardy operators with integral calculus. Middle East Journal of Science, 10(1):1–13, 2024. https://doi.org/10.51477/mejs.1451041
L. Akın and Y. Dinç. On innovative conditions for weighted Hardy-type inequalities on time scales. Math. Methods Appl. Sci., 48(18):16365–16374, 2025. https://doi.org/10.1002/mma.70092
L. Akın and Y. Zeren. On innovations of the multivariable fractional Hardy-type inequalities on time scales. Sigma Journal of Engineering and Natural Sciences, 41(2):415–422, 2023. https://doi.org/10.14744/sigma.2023.00044
E. Awwad and A.I. Saied. Some new multidimensional Hardy-type inequalities with general kernels on time scales. J. Math. Inequal., 16(1):393–412, 2022. https://doi.org/10.7153/jmi-2022-16-29
E. Awwad and A.I. Saied. Some weighted dynamic inequalities of Hardy type with kernels on time scales nabla calculus. J. Math. Inequal., 18(2):457–475, 2024. https://doi.org/10.7153/jmi-2024-18-25
S.A. Bendaoud and A. Senouci. Some generalizations of integral inequalities similar to Hardy’s inequality. Afr. Mat., 33(1):20, 2022. https://doi.org/10.1007/s13370-021-00942-1
M. Bohner, I. Jadlovská and A.I. Saied. Some new Hardy-type inequalities with negative parameters on time scales. Qual. Theory Dyn. Syst., 24(2):72, 2025. https://doi.org/10.1007/s12346-025-01231-z
M. Bohner and A. Peterson. Dynamic equations on time scales: An introduction with applications. Springer Science & Business Media, 2001. https://doi.org/10.1007/978-1-4612-0201-1
G.H. Hardy. Note on a theorem of Hilbert. Math. Z., 6(3):314–317, 1920. https://doi.org/10.1007/BF01199965
G.H. Hardy. Notes on some points in the integral calculus (LX): An inequality between integrals. Messenger of Math., 54:150–156, 1925
W.M. Hasan, H.M. El-Owaidy, A.A. El-Deeb and H.M. Rezk. A generalization of some integral inequalities similar to Hardy inequality on time scales. Kuwait J. Sci., 51(1):100–124, 2024. https://doi.org/10.1016/j.kjs.2023.08.007
W.M. Hasan, H.M. El-Owaidy, A.A. El-Deeb and H.M. Rezk. Generalizations of integral inequalities similar to Hardy inequality on time scales. J. Math. Comput. Sci., 32:241–256, 2024. https://doi.org/10.22436/jmcs.032.03.05
S. Hilger. Analysis on measure chains—a unified approach to continuous and discrete calculus. Results Math., 18(1):18–56, 1990. https://doi.org/10.1007/BF03323153
B. Opic and A. Kufner. Hardy-Type Inequalities. Pitman Research Notes in Mathematics Series. Harlow, Essex: Longman Scientific and Technical, 1990.
P. Rehak. Hardy inequality on time scales and its application to half-linear dynamic equations. J. Inequal. Appl., 2005(5):942973, 2005. https://doi.org/10.1155/JIA.2005.495
S.H. Saker, J. Alzabut, A.I. Saied and D. O’Regan. New characterizations of weights on dynamic inequalities involving a Hardy operator. J. Inequal. Appl., 2021(1):73, 2021. https://doi.org/10.1186/s13660-021-02606-x
S.H. Saker, E. Awwad and A.I. Saied. Some new dynamic inequalities involving monotonic functions on time scales. J. Funct. Spaces, 2019(1):7584836, 2019. https://doi.org/10.1155/2019/7584836
S.H. Saker, A.I. Saied and M. Krnić. Some new weighted dynamic inequalities for monotone functions involving kernels. Mediterr. J. Math., 17(2):1–18, 2020. https://doi.org/10.1007/s00009-020-1473-0
B. Sroysang. A generalization of some integral inequalities similar to Hardy’s inequality. Math. Aeterna, 3(7):593–596, 2013.
W.T. Sulaiman. Reverses of Minkowski’s, Hölder’s, and Hardy’s integral inequalities. Int. J. Mod. Math. Sci., 1(1):14–24, 2012.
S. Wu, B. Sroysang and S. Li. A further generalization of certain integral inequalities similar to Hardy’s inequality. J. Nonlinear Sci. Appl., 9(3):1093–1102, 2016. https://doi.org/10.22436/jnsa.009.03.37
M. Zakarya, G. AlNemer, A.I. Saied and H.M. Rezk. Novel generalized inequalities involving a general Hardy operator with multiple variables and general kernels on time scales. AIMS Math., 9(8):21414–21432, 2024. https://doi.org/10.3934/math.20241040
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