Home On perturbation of continuous frames in Hilbert C *-modules
Article
Licensed
Unlicensed Requires Authentication

On perturbation of continuous frames in Hilbert C *-modules

  • Hadi Ghasemi and Tayebe Lal Shateri EMAIL logo
Published/Copyright: February 20, 2024
Become an author with De Gruyter Brill

Abstract

In the present paper, we examine the perturbation of continuous frames and Riesz-type frames in Hilbert C * -modules. We extend the Casazza–Christensen general perturbation theorem for Hilbert space frames to continuous frames in Hilbert C * -modules. We obtain a necessary condition under which the perturbation of a Riesz-type frame of Hilbert C * -modules remains to be a Riesz-type frame. Also, we examine the effect of duality on the perturbation of continuous frames in Hilbert C * -modules, and we prove that if the operator frame of a continuous frame F is near to the combination of the synthesis operator of a continuous Bessel mapping G and the analysis operator of F, then G is a continuous frame.

MSC 2020: 47A55; 42C15

References

[1] L. Arambašić, On frames for countably generated Hilbert C * -modules, Proc. Amer. Math. Soc. 135 (2007), no. 2, 469–478. 10.1090/S0002-9939-06-08498-XSearch in Google Scholar

[2] O. Christensen, A Paley–Wiener theorem for frames, Proc. Amer. Math. Soc. 123 (1995), no. 7, 2199–2201. 10.1090/S0002-9939-1995-1246520-XSearch in Google Scholar

[3] O. Christensen, Operators with closed range, pseudo-inverses, and perturbation of frames for a subspace, Canad. Math. Bull. 42 (1999), no. 1, 37–45. 10.4153/CMB-1999-004-5Search in Google Scholar

[4] O. Christensen, C. Lennard and C. Lewis, Perturbation of frames for a subspace of a Hilbert space, Rocky Mountain J. Math. 30 (2000), no. 4, 1237–1249. 10.1216/rmjm/1021477349Search in Google Scholar

[5] N. Dunford and J. T. Schwartz, Linear Operators. I. General Theory, Pure Appl. Math. 7, Interscience, New York, 1958. Search in Google Scholar

[6] H. Ghasemi and T. L. Shateri, Continuous * -controlled frames in Hilbert C * -modules, Casp. J. Math. Sci. 11 (2022), no. 2, 448–460. Search in Google Scholar

[7] H. Ghasemi and T. L. Shateri, Continuous Riesz bases in Hilbert C * -modules, preprint (2022), https://arxiv.org/abs/2208.14012; to appear in Math. Anal. Convex Optim. 10.21203/rs.3.rs-2653773/v1Search in Google Scholar

[8] H. Ghasemi and T. L. Shateri, Exact continuous frames in Hilbert C -modules, preprint (2022), https://arxiv.org/abs/2210.13808. Search in Google Scholar

[9] H. Ghasemi and T. L. Shateri, On continuous Frames in Hilbert C * -Modules, Sahand Commun. Math. Anal., to appear. Search in Google Scholar

[10] H. Ghasemi, T. L. Shateri and A. Arefijamal, Charactrization of duals of continuous frames in Hilbert C -modules, preprint (2023), https://arxiv.org/abs/2302.13554. Search in Google Scholar

[11] D. Han, W. Jing and R. N. Mohapatra, Perturbation of frames and Riesz bases in Hilbert C * -modules, Linear Algebra Appl. 431 (2009), no. 5–7, 746–759. 10.1016/j.laa.2009.03.025Search in Google Scholar

[12] E. C. Lance, Hilbert C * -Modules. A Toolkit for Operator Algebraists, London Math. Soc. Lecture Note Ser. 210, Cambridge University, Cambridge, 1995. Search in Google Scholar

[13] V. M. Manuilov and E. V. Troitsky, Hilbert C * -Modules, Transl. Math. Monogr. 226, American Mathematical Society, Providence, 2005. Search in Google Scholar

[14] A. Rahimi, A. Najati and Y. N. Dehghan, Continuous frames in Hilbert spaces, Methods Funct. Anal. Topology 12 (2006), no. 2, 170–182. Search in Google Scholar

[15] N. E. Wegge-Olsen, K-Theory and C * -Algebras. A Friendly Approach, Oxford Science Publ., Oxford University Press, New York, 1993. Search in Google Scholar

[16] Q. Xu and L. Sheng, Positive semi-definite matrices of adjointable operators on Hilbert C * -modules, Linear Algebra Appl. 428 (2008), no. 4, 992–1000. 10.1016/j.laa.2007.08.035Search in Google Scholar

[17] K. Yosida, Functional Analysis, 6th ed., Grundlehren Math. Wiss. 123, Springer, Berlin, 1980. Search in Google Scholar

Received: 2023-06-20
Revised: 2023-08-01
Accepted: 2023-08-03
Published Online: 2024-02-20
Published in Print: 2024-10-01

© 2024 Walter de Gruyter GmbH, Berlin/Boston

Downloaded on 26.9.2025 from https://www.degruyterbrill.com/document/doi/10.1515/gmj-2023-2111/html
Scroll to top button