Abstract
In this paper we use Riesz spectral Theory and Gershgorin Theory to obtain explicit information concerning the spectrum of pseudo-differential operators defined on the unit circle \(\mathbb {T} := \mathbb {R}/ 2 \pi \mathbb { Z}\). For symbols in the Hörmander class \(S^m_{1 , 0} (\mathbb {T}\times \mathbb {Z})\), we provide a sufficient and necessary condition to ensure that the corresponding pseudo-differential operator is a Riesz operator in \(L^p (\mathbb {T})\), \(1< p < \infty \), extending in this way compact operators characterisation in Molahajloo (Pseudo-Differ Oper Anal Appl Comput 213:25–29, 2011) and Ghoberg’s lemma in Molahajloo and Wong (J Pseudo-Differ Oper Appl 1(2):183–205, 2011) to \(L^p (\mathbb {T})\). We provide an example of a non-compact Riesz pseudo-differential operator in \(L^p (\mathbb {T})\), \(1<p<2\). Also, for pseudo-differential operators with symbol satisfying some integrability condition, it is defined its associated matrix in terms of the Fourier coefficients of the symbol, and this matrix is used to give necessary and sufficient conditions for \(L^2\)-boundedness without assuming any regularity on the symbol, and to locate the spectrum of some operators.
Similar content being viewed by others
References
Agranovich, M.S.: Spectral properties of elliptic pseudodifferential operators on a closed curve. Funct. Anal. Appl. 13(4), 279–281 (1979)
Aleksić, J., Kostić, V., Žigić, M.: Spectrum localizations for matrix operators on lp spaces. Appl. Math. Comput. 249, 541–553 (2014)
Caradus, S.R., Pfaffenberger, W.E.: Calkin Algebras and Algebras of Operators on Banach Spaces, 1st edn. Lecture Notes in Pure and Applied Mathematics. Marcel Dekker, New York (1974)
Cardona, D.: Hölder-Besov boundedness for periodic pseudo-differential operators. J. Pseudo-Differ. Oper. Appl. 8(1), 13–34 (2017)
Cardona, D.: On the boundedness of periodic pseudo-differential operators. arXiv:1701.08184 [math.AP] (2017)
Carey, A., Ellwood, D., Paycha, S., Rosenberg S.: Quantum field theory, and pseudodifferential operators. In: Clay Mathematics Proceedings, vol. 12, pp. 37 – 72. AMS, New York (2010)
Conway, J.B.: A Course in Functional Analysis, 2 edn. (Corrected Fourth Printing) ed. Graduate Texts in Mathematics 096. Springer, New York (1997)
Crone, L.: A characterization of matrix operators on l2. Math. Z. 123, 315–317 (1971)
Delgado, J.: Lp-bounds for pseudo-differential operators on the torus. In: Molahajloo, S., et al. (eds.) Pseudo-Differential Operators, Generalized Functions and Asymptotics, pp. 103–116. Birkhauser, Basel (2013)
Delgado, J., Ruzhansky, M.: Kernel and symbol criteria for schatten classes and r-nuclearity on compact manifolds. Comptes Rendus Math. 352(10), 779–784 (2014)
Delgado, J., Ruzhansky, M.: Schatten classes and traces on compact Lie groups. Math. Res. Lett. arXiv:1303.3914 [math.FA] (2016)
Delgado, J., Ruzhansky, M.: \(L^{p}\)-bounds for pseudo-differential operators on compact lie groups. J. Inst. Math. Jussieu (2017). https://doi.org/10.1017/S1474748017000123
Eidelman, Y., Milman, V., Tsolomitis, A.: Functional Analysis: An introduction. Graduate Studies in Mathematics. American Mathematical Society, New York (2004)
Esposito, G., Napolitano, G.: Geometry and physics of pseudodifferential operators on manifolds. Il Nuovo Cimento C 38, 158–172 (2015)
Farid, F., Lancaster, P.: Spectral properties of diagonally dominant infinite matrices. II. Linear Algebr. Appl. 143, 7–17 (1991)
Ghaemi, M.B., Birgani, M., Morsalfard, E.N.: A study on pseudo-differential operators on \({\mathbb{S}}^{1}\) and \({\mathbb{Z}}\). J. Pseudo-Differ. Oper. Appl. 7, 237–247 (2016)
Ghaemi, M.B., Birgani, M.J., Wong, M.W.: Characterizations of nuclear pseudo-differential operators on \(\mathbb{S}^{1}\) with applications to adjoints and products. J. Pseudo-Differ. Oper. Appl. 8(2), 191–201 (2017)
Ghaemi, M. B., Nabizadeh Morsalfard, E., Birgani, M.: Some criteria for boundedness and compactness of pseudo-differential operators on \(l^p ({\mathbb{S}}^1)\), \(1< p< \infty \)
Hernández, F.L., Semenov, E.M., Tradacete, P.: Strictly singular operators on \(L^p\) spaces and interpolation. Proc. Am. Math. Soc. 138(2), 675–686 (2010)
Lindenstrauss, J., Johnson, W.: Handbook of the geometry of Banach spaces, 1st, vol. 1, ed edn. Elsevier, Amsterdam (2001)
McLean, W.: Local and global descriptions of periodic pseudodifferential operators. Math. Nachr. 150(1), 151–161 (1991)
Molahajloo, S.: A characterization of compact pseudo-differential operators on \(\mathbb{S}^1\). Pseudo-Differ. Oper. Anal. Appl. Comput. 213, 25–29 (2011)
Molahajloo, S., Wong, M.W.: Pseudo-differential operators on \(\mathbb{S}^{1}\). New Developments in Pseudo-Differential Operators: ISAAC Group in Pseudo-Differential Operators (IGPDO), pp. 297–306
Molahajloo, S., Wong, M.W.: Ellipticity, fredholmness and spectral invariance of pseudo-differential operators on \(\mathbb{S}^1\). J. Pseudo-Differ. Oper. Appl. 1(2), 183–205 (2010)
Pietsch, A.: Operator Ideals. North-Holland Mathematical Library, vol. 20. Elsevier, Amterdam (1980)
Pietsch, A.: Eigenvalues and S-Numbers. Cambridge Studies in Advanced Mathematics, vol. 13. Cambridge University Press, Cambridge (1987)
Pirhayati, M.: Spectral Theory of Pseudo-Differential Operators on \(\mathbb{S}^1\), pp. 15–23. Springer, Basel (2011)
Ruston, A.F.: Operators with a fredholm theory. J. Lond. Math. Soc. 3, 318–326 (1964)
Ruzhansky, M., Turunen, V.: Quantization of pseudo-differential operators on the torus. arXiv:0805.2892 [math.FA] (2008)
Ruzhansky, M., Turunen, V.: Pseudo-Differential Operators and Symmetries. Background Analysis and Advanced Topics, 1st edn. Birkhäuser, Basel (2009)
Shivakumar, P., Williams, J., Rudraiah, N.: Eigenvalues for infinite matrices. Linear Algebr. Appl. 96, 35–63 (1987)
West, T.T.: Riesz operators in banach spaces. Proc. Lond. Math. Soc. 16(1), 131–140 (1996)
Wong, M.W.: Discrete Fourier Analysis, 1 edn. Pseudo-Differential Operators 5. Birkhäuser Basel (2011)
Acknowledgements
I sincerely thank the guidance of Carlos Andres Rodriguez Torijano who proposed me this research as the first step in my career as a mathematical researcher. I also want to thank professor Michael Ruzhansky and the anonymous referees for their comments.
Author information
Authors and Affiliations
Corresponding author
Additional information
Communicated by Michael Ruzhansky.
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Velasquez-Rodriguez, J.P. On Some Spectral Properties of Pseudo-differential Operators on \(\mathbb {T}\). J Fourier Anal Appl 25, 2703–2732 (2019). https://doi.org/10.1007/s00041-019-09680-2
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00041-019-09680-2
Keywords
- Spectral theory
- Pseudo-differential operators
- Riesz operators
- Operator ideals
- Gershgorin theory
- Fourier analysis