Abstract
In this paper, we introduce and study the domain of an arbitrary four-dimensional summability matrix in the double sequence space \(\mathcal {L}_p\) and focus on the boundedness problem of four-dimensional operators on it. We consider the class of four-dimensional Hausdorff matrices as operators mapping \(\mathcal {L}_p\) into these domains and provide a Hardy type formula for their operator norms and lower bounds. Then we apply our results to some special domains of \(\mathcal {L}_p\) such as the double Laurent, Taylor and Euler sequence spaces. Finally, we provide a general upper estimate for the operator norms of four-dimensional matrices which have real and complex entries with certain conditions.
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Başar, F., Sever, Y.: The space \(\cal{L}_p\) of double sequences. Math. J. Okayama Univ. 51, 149–157 (2009)
Mursaleen, M., Başar, F.: Domain of Cesáro mean of order one in some spaces of double sequences. Stud. Sci. Math. Hungar. 51(3), 335–356 (2014)
Rhoades, B.E.: Some classes of doubly infinite matrices. Indian J. Pure Appl. Math. 23(6), 419–427 (2003)
Talebi, G.: On boundedness of four-dimensional Hausdorff matrices on the double Taylor sequence spaces. Indag. Math. 28(5), 953–961 (2017)
Talebi, G.: Operator norm and lower bound of four-dimensional matrices. Indag. Math. 28(6), 1134–1143 (2017)
Talebi, G.: Operator norms of four-dimensional Hausdorff matrices on the double Euler sequence spaces. Linear Multilinear Algebra 65(11), 2257–2267 (2017)
Talebi, G.: Complementary results on the boundedness problem of factorizable four-dimensional matrices. Bull. Malays. Math. Sci. Soc. (2018). https://doi.org/10.1007/s40840-018-00703-7
Talebi, G.: Lower bound of four-dimensional Hausdorff matrices, preprint
Tuğ, O., Başar, F.: Four-dimensional generalized difference matrix and some double sequence spaces, In AIP Conference Proceedings, vol. 1759, No. 1, p. 020075. AIP Publishing, New york
Tuğ, O.: Four-dimensional generalized difference matrix and some double sequence spaces. J. Inequal. Appl. 2017, 149 (2017). https://doi.org/10.1186/s13660-017-1423-y
Yeşilkayagil, M., Başar, F.: Mercerian theorem for four-dimensional matrices. Commun. Fac. Sci. Univ. Ankara, Ser. A1 Math. Stat. 65(1), 147–155 (2016)
Yeşilkayagil, M., Başar, F.: On the characterization of some classes of four-dimensional matrices and Steinhaus type theorems. Kragujevac J. Math. 40(1), 35–45 (2016)
Yeşilkayagil, M., Başar, F.: Four-dimensional dual and dual of the new sort summability methods. Contemp. Anal. Appl. Math. 3(1), 13–29 (2015)
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The paper is dedicated to Hazrat Bibi Fatimah Zahra, the leader of all the women of the world for all times, on the occasion of the 1429th anniversary of her martyrdom
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Talebi, G. Boundedness Problem of Four-Dimensional Matrices on the Domain Spaces of \(\mathcal {L}_p\). Results Math 74, 41 (2019). https://doi.org/10.1007/s00025-019-0958-2
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DOI: https://doi.org/10.1007/s00025-019-0958-2