Hilbert’s Double Series Theorem’s Extensions via the Mathieu Series Approach †
Abstract
:1. Introduction
2. Preparation and Methodology
3. Inequalities with Non-Weighted Norms
- If we take , their inverses are and the constant becomes
- For , the kernel is homogeneous. The inequality transforms into
- in the case when ; the kernel is homogeneous.
- We close the specifications’ list with . With the aid of Corollary 4, we conclude.
4. Extensions of Theorem 2
5. Two Consequences of Theorem 3
- An advantage of the inequality class covered by Theorem 3 is the fact that Hölder exponents are independent and remain non-conjugated.
- Choosing , we deduce
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
- Hardy, G.H.; Littelwood, J.E. Pólya, Gy. Inequalities; Cambridge University Press: Cambridge, UK, 1934. [Google Scholar]
- Mitrinović, D.S. Analytic Inequalities. In Cooperation with P. M. Vasić; Die Grundlehren der Mathematischen Wissenschaften; Springer: Berlin/Heidelberg, Germany, 1970; Volume 165. [Google Scholar]
- Hardy, G.H. Note on a theorem of Hilbert. Math. Z. 1920, 6, 314–317. [Google Scholar] [CrossRef]
- Hardy, G.H.; Littlewood, J.E. Elementary theorems concerning power series with positive coefficients and moment constants of positive functions. J. Reine Angew. Math. 1927, 157, 141–158. [Google Scholar]
- Mulholland, H.P. Note on Hilbert’s double-series theorem. J. Lond. Math. Soc. 1928, 3, 197–199. [Google Scholar] [CrossRef]
- Chen, Y.Q.; Xu, J.S. New extensions of Hilbert’s inequality with multiple parameters. Acta Math. Hung. 2007, 117, 383–400. [Google Scholar] [CrossRef]
- De Bruijn, N.G.; Wilf, H.S. On Hilbert’s inequality in n dimensions. Bull. Am. Math. Soc. 1962, 68, 70–73. [Google Scholar] [CrossRef] [Green Version]
- Jichang, K.; Debnath, L. The general form of Hilbert’s inequality and its converses. Anal. Math. 2005, 31, 163–173. [Google Scholar]
- Krnić, M.; Gao, M.; Pečarić, J.; Gao, X. On the best constant in Hilbert’s inequality. Math. Ineq. Appl. 2005, 8, 317–329. [Google Scholar] [CrossRef]
- Krnić, M.; Pečarić, J. General Hilbert’s and Hardy’s inequalities. Math. Ineq. Appl. 2005, 8, 29–51. [Google Scholar] [CrossRef] [Green Version]
- Krnić, M.; Pečarić, J. Extension of Hilbert’s inequality. J. Math. Anal. Appl. 2006, 324, 150–160. [Google Scholar] [CrossRef] [Green Version]
- Krnić, M.; Pečarić, J. A Hilbert inequality and an Euler-MacLaurin summation formula. ANZIAM J. 2007, 48, 419–431. [Google Scholar] [CrossRef] [Green Version]
- Adiyasuren, V.; Batbold, T.; Krnić, M. Half–discrete Hilbert–type inequalities with mean operators, the best constants, and applications. Appl. Math. Comput. 2014, 231, 148–159. [Google Scholar] [CrossRef]
- Pachpatte, B.G. Inequalities similar to certain extensions of Hilbert’s inequality. J. Math. Anal. Appl. 2000, 243, 217–227. [Google Scholar] [CrossRef]
- Pogány, T.K. Hilbert’s double series theorem extended to the case of non–homogeneous kernels. J. Math. Anal. Appl. 2008, 342, 1485–1489. [Google Scholar] [CrossRef] [Green Version]
- Shang, X.; Gao, M. New extensions on Hilbert’s theorem for double series. Int. J. Math. Anal. (Ruse) 2007, 1, 487–496. [Google Scholar]
- Yang, B.C. On new generalizations of Hilbert’s inequality. J. Math. Anal. Appl. 2000, 248, 29–40. [Google Scholar]
- Yang, B.C. A new inequality similar to Hilbert’s inequality. J. Inequal. Pure Appl. Math. 2002, 3, 75. [Google Scholar] [CrossRef] [Green Version]
- Yang, B.C. On a dual Hardy–Hilbert’s inequality and its generalization. Anal. Math. 2005, 31, 151–161. [Google Scholar] [CrossRef]
- Yang, B.C. On a new extension of Hilbert’s inequality with some parameters. Acta Math. Hung. 2005, 108, 337–350. [Google Scholar] [CrossRef]
- Yang, B.C. On the norm of a Hilbert’s type linear operator and applications. J. Math. Anal. Appl. 2007, 325, 529–541. [Google Scholar] [CrossRef] [Green Version]
- Draščić Ban, B.; Pogány, T.K. Discrete Hilbert type inequality with nonhomogeneous kernel. Appl. Anal. Discrete Math. 2009, 3, 88–96. [Google Scholar] [CrossRef]
- Pogány, T.K. Integral representation of Mathieu (a,λ)-series. Integral Tranforms Spec. Funct. 2005, 16, 685–689. [Google Scholar] [CrossRef]
- Pogány, T.K. New class of inequalities associated with Hilbert–type double series theorem. Appl. Math. E-Notes 2010, 10, 47–51. [Google Scholar]
- Cahen, E. Sur la fonction ζ(s) de Riemann et sur des fontions analogues. Ann. Sci. l’École Norm. Sup. Sér. Math. 1894, 11, 75–164. [Google Scholar] [CrossRef]
- Draščić Ban, B.; Pečarić, J.; Pogány, T.K. On a discrete Hilbert type inequality with non-homogeneous kernel. Sarajevo J. Math. 2010, 6, 23–34. [Google Scholar]
- Draščić Ban, B.; Pečarić, J.; Perić, I.; Pogány, T.K. Discrete multiple Hilbert’s type inequality with non–homogeneous kernel. J. Korean Math. Soc. 2010, 47, 537–546. [Google Scholar]
- Krnić, M.; Vuković, P. Multidimensional Hilbert-type inequalities obtained via local fractional calculus. Acta Appl. Math. 2020, 169, 667–680. [Google Scholar] [CrossRef]
- Levin, V. On the two–parameter extension and analogue of Hilbert’s inquality. J. Lond. Math. Soc. 1936, 11, 119–124. [Google Scholar] [CrossRef]
- Bonsall, F.F. Inequalities with non-conjugate parameters. Quart. J. Math. Oxford 1951, 2, 135–150. [Google Scholar] [CrossRef]
- Batbold, T.; Krnić, M.; Pečarić, J.; Vuković, P. Further Development of Hilbert’s–Type Inequalities; Element: Zagreb, Croatia, 2017. [Google Scholar]
- Mulholland, H.P. Some theorems on Dirichlet series with positive coefficients and related integrals. Proc. Lond. Math. Soc. 1929, 29, 281–292. [Google Scholar] [CrossRef]
- Yang, B.C. A relation between Hardy–Hilbert’s inequality and Mulholland’s inequality. Acta Math. Sin. (Chin. Ser.) 2006, 49, 559–566. (In Chinese) [Google Scholar]
- He, L.P.; Jia, W.J.; Gao, M.Z. A Hardy–Hilbert’s type inequality with gamma function and its applications. Integral Transforms Spec. Funct. 2006, 17, 355–363. [Google Scholar] [CrossRef]
- Yang, B.C. Hilbert’s inequality with some parameters. Acta Math. Sin. (Chin. Ser.) 2006, 49, 1121–1126. (In Chinese) [Google Scholar]
- Baricz, Á.; Jankov Maširević, D.; Pogány, T.K. Series of Bessel and Kummer–Type Functions; Lecture Notes in Mathematics; Springer: Cham, Switzerland, 2017; Volume 2207. [Google Scholar]
- WolframResearch. Available online: http://functions.wolfram.com/EllipticFunctions/EllipticTheta3/21/02/01/ (accessed on 28 October 2022).
- Pogány, T.K.; Srivastava, H.M.; Tomovski, Ž. Some families of Mathieu a-series and alternating Mathieu a-series. Appl. Math. Comput. 2006, 173, 69–108. [Google Scholar] [CrossRef]
Publisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations. |
© 2022 by the author. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Share and Cite
Pogány, T.K. Hilbert’s Double Series Theorem’s Extensions via the Mathieu Series Approach. Axioms 2022, 11, 643. https://doi.org/10.3390/axioms11110643
Pogány TK. Hilbert’s Double Series Theorem’s Extensions via the Mathieu Series Approach. Axioms. 2022; 11(11):643. https://doi.org/10.3390/axioms11110643
Chicago/Turabian StylePogány, Tibor K. 2022. "Hilbert’s Double Series Theorem’s Extensions via the Mathieu Series Approach" Axioms 11, no. 11: 643. https://doi.org/10.3390/axioms11110643