Abstract
In this paper, we prove an analog of Titchmarsh’s theorem for the q-Bessel Fourier transform using a generalized q-translation operator. Using the q-Bessel operator we define the Sobolev-type spaces, K-functionals and we give the proof of the equivalence theorem for a K-functional and a modulus of smoothness.
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Dhaouadi, L.: Positivity of the generalized translation associated with the q-Hankel transform and applications. Integral Transforms 26(2), 102–117 (2014)
Dhaouadi, L., Fitouhi, A., El Kamel, J.: Inequalities in \(q\)-Fourier analysis. J. Inequal. Pure Appl. Math. 7(5), 171 (2006)
Dhaouadi, L., Fitouhi, A., Binous, W.: Paley–Wiener theorem for the \(q\)-Bessel transform and associated \(q\)-sampling formula. Expo. Math. 27, 55–72 (2009)
Dhaoudi, L.: On the \(q\)-Bessel Fourier transform. Bull. Math. Anal. Appl. 5(2), 42–60 (2013)
Dai, F.: Some equivalence theorems with K-functionals. J. Approx. Theory 121, 143–157 (2003)
Fitouhi, A., Dhaouadi, L.: Positivity of the generalized translation associated with the \(q\)-Hankel transform. Constr. Approx. 34, 435–472 (2011)
Gasper, G., Rahman, M.: Basic Hypergeometric Series, Encycopedia of Mathematics and Its Applications, vol. 35. Cambridge University Press, Cambridge (1990)
Jackson, F.H.: On a \(q\)-defnite integrals. Q. J. Pure Appl. Math. 41, 193–203 (1910)
Koornwinder, T.H., Swarttouw, R.F.: on \(q\)-analogues of the Hankel and Fourier transform. Trans. AMS 333, 445–461 (1992)
Lofstrom, J., Peetre, J.: Approximation theorems connected with generalized translations. Math. Ann. 181, 255–268 (1969)
Swarttouw, R.F.: The Hahn–Exton \(q\)-Bessel functions. Ph.D. thesis, Delft Technical University (1992)
Titchmarsh, E.C.: Introduction to the Theory of Fourier Integrals. Oxford University Press, London (1948)
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The authors would like to thank the anonymous reviewers for their valuable comments.
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Achak, A., Daher, R., Dhaouadi, L. et al. An analog of Titchmarsh’s theorem for the q-Bessel transform. Ann Univ Ferrara 65, 1–13 (2019). https://doi.org/10.1007/s11565-018-0309-3
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DOI: https://doi.org/10.1007/s11565-018-0309-3