Integral Equations and Operator Theory

, Volume 44, Issue 1, pp 10–37

Toeplitz operators on the Fock space: Radial component effects

  • S. M. Grudsky
  • N. L. Vasilevski
Article

DOI: 10.1007/BF01197858

Cite this article as:
Grudsky, S.M. & Vasilevski, N.L. Integr equ oper theory (2002) 44: 10. doi:10.1007/BF01197858
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Abstract

The paper is devoted to the study of specific properties of Toeplitz operators with (unbounded, in general) radial symbolsa=a(r). Boundedness and compactness conditions, as well as examples, are given. It turns out that there exist non-zero symbols which generate zero Toeplitz operators. We characterize such symbols, as well as the class of symbols for whichTa=0 impliesa(r)=0 a.e. For each compact setM there exists a Toeplitz operatorTa such that spTa=ess-spTa=M. We show that the set of symbols which generate bounded Toeplitz operators no longer forms an algebra under pointwise multiplication.

Besides the algebra of Toeplitz operators we consider the algebra of Weyl pseudodifferential operators obtained from Toeplitz ones by means of the Bargmann transform. Rewriting our Toeplitz and Weyl pseudodifferential operators in terms of the Wick symbols we come to their spectral decompositions.

AMS Classification

47B35 47E20 

Copyright information

© Birkhäuser Verlag 2002

Authors and Affiliations

  • S. M. Grudsky
    • 1
  • N. L. Vasilevski
    • 2
  1. 1.Department of MathematicsRostov-on-Don State UniversityRostov-on-DonRussia
  2. 2.Departmento de MatemáticasCINVESTAV del I.P.N.MéxicoMexico

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