Abstract
In this paper, we consider unbounded weighted composition operators acting on Fock space, and investigate some important properties of these operators, such as \(\mathcal {C}\)-selfadjoint (with respect to weighted composition conjugations), Hermitian, normal, and cohyponormal. In addition, the paper shows that unbounded normal weighted composition operators are contained properly in the class of \(\mathcal {C}\)-selfadjoint operators with respect to weighted composition conjugations.
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Bourdon, P.S., Narayan, S.K.: Normal weighted composition operators on the Hardy space \({H}^{2}(\mathbb {U})\). J. Math. Anal Appl. 367, 278–286 (2010)
Cowen, C., Ko, E.: Hermitian weighted composition operators on H2. Trans. Amer. Math Soc. 362, 5771–5801 (2010)
Cowen, C.C., MacCluer, B.D.: Composition operators on spaces of analytic functions. Studies in advanced mathematics. CRC Press, Boca Raton (1995)
Cowen, C.C., Jung, S., Ko, E.: Normal and cohyponormal weighted composition operators on H2. In: Operator theory in harmonic and non-commutative analysis, pp. 69–85. Springer International Publishing, Cham (2014)
Garcia, S.R., Hammond, C.: Which weighted composition operators are complex symmetric? Oper. Theory Adv. Appl. 236, 171–179 (2014)
Garcia, S.R., Prodan, E., Putinar, M.: Mathematical and physical aspects of complex symmetric operators. J. Phys. A 47, 353001, 54 (2014)
Garcia, S.R., Putinar, M.: Complex symmetric operators and applications. Trans. Amer. Math. Soc. 358, 1285–1315 (2006)
Garcia, S.R., Putinar, M.: Complex symmetric operators and applications II. Trans. Amer. Math. Soc. 359, 3913–3931 (2007)
Glazman, I.M.: An analogue of the extension theory of Hermitian operators and a non-symmetric one-dimensional boundary problem on a half-axis (Russian). Dokl. Akad. Nauk SSSR (N.S.) 115, 214–216 (1957)
Glazman, I.M.: Direct methods of qualitative spectral analysis of singular differential operators. Translated from the Russian by the IPST Staff. Israel program for scientific translations, Jerusalem (1965)
Hai, P.V., Khoi, L.H.: Boundedness and compactness of weighted composition operators on Fock spaces \(\mathcal {F}^{p}(\mathbb {C})\). Acta Mathematica Vietnamica 41, 531–537 (2016)
Hai, P.V., Khoi, L.H.: Complex symmetry of weighted composition operators on the Fock space. J. Math. Anal Appl. 433, 1757–1771 (2016)
Izuchi, K.H.: Cyclic vectors in the Fock space over the complex plane. Proc. Amer. Math. Soc. 133, 3627–3630 (2005)
Jung, S., Kim, Y., Ko, E., Lee, J.E.: Complex symmetric weighted composition operators on \({H}^{2}(\mathbb {D})\). J. Funct Anal. 267, 323–351 (2014)
Knowles, I.: On the boundary conditions characterizing J-selfadjoint extensions of J-symmetric operators. J. Differential Equations 40, 193–216 (1981)
Le, T.: Normal and isometric weighted composition operators on the Fock space. Bull. Lond. Math Soc. 46, 847–856 (2014)
Race, D.: The theory of J-selfadjoint extensions of J-symmetric operators. J. Differential Eq. 57, 258–274 (1985)
Schmüdgen, K.: Unbounded self-adjoint operators on Hilbert space. Graduate texts in mathematics, vol. 265. Springer, Dordrecht (2012)
Stein, E.M., Shakarchi, R.: Complex analysis. Princeton lectures in analysis, vol. 2. Princeton University Press, Princeton (2003)
Szafraniec, F.H.: The reproducing kernel property and its space: the basics. Operator Theory, Springer Reference, vol. 1, pp. 3–30. Springer, Basel (2015)
Thompson, D.: Normality properties of weighted composition operators on H2. In: Problems and Recent Methods in Operator Theory, Contemp. Math., vol. 687, pp. 231-239. Amer. Math. Soc., Providence, RI (2017)
Wang, M., Yao, X.: Complex symmetry of weighted composition operators in several variables. Internat. J. Math. 27(2), 1650017, 14 (2016)
Zhu, K.: Analysis on Fock spaces. Springer, New York (2012)
Acknowledgments
The author wishes to thank Dr L. H. Khoi for a comment on the presentation of the first draft. The author also greatly appreciates the careful eye of the anonymous referee, who pointed out minor typos in Theorem 3.3.
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Hai, P. Unbounded Weighted Composition Operators on Fock space. Potential Anal 53, 1–21 (2020). https://doi.org/10.1007/s11118-018-09757-5
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DOI: https://doi.org/10.1007/s11118-018-09757-5