Abstract
We describe some radial Fock type spaces which possess Riesz bases of normalized reproducing kernels, the spaces \(\mathcal F_{\varphi }\) of entire functions f such that \(fe^{-\varphi }\in L_2(\mathbb C)\), where \(\varphi (z) = \varphi (|z|)\) is a radial subharmonic function. We prove that \(\mathcal F_{\varphi }\) has Riesz basis of normalized reproducing kernels for sufficiently regular \(\psi (r)=\varphi (e^r)\) such that \(\psi ''(r)\) is bounded above.
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References
Seip, K.: Density theorems for sampling and interpolation in the Bargmann–Fock space I. Reine Angew. Math. 429, 91–106 (1992). https://doi.org/10.1515/crll.1992.429.91
Seip, K., Wallsten, R.: Density theorems for sampling and interpolation in the Bargmann–Fock space II. Reine Angew. Math. 429, 107–113 (1992)
Borichev, A., Dhuez, R., Kellay, K.: Sampling and interpolation in large Bergman and Fock spaces. J. Funct. Anal. 242(2), 563–606 (2007). https://doi.org/10.1016/j.jfa.2006.09.002
Isaev, K.P., Trounov, K.V., Yulmukhametov, R.S.: On representation of functions from normed subspaces of \(H(D)\) by series of exponentials. Anal. Math. Phys. 9(3), 1043–1067 (2019). https://doi.org/10.1007/s13324-019-00288-9
Borichev, A., Lyubarskii, Yu.: Riesz bases of reproducing kernels in Fock type spaces. J. Inst. Math. Jussieu 9, 449–461 (2010). https://doi.org/10.1017/S147474800900019X
Baranov, A., Belov, Yu., Borichev, A.: Fock type spaces with Riesz bases of reproducing kernels and de Branges spaces. Stud. Math. 236(2), 127–142 (2017). https://doi.org/10.4064/sm8504-9-2016
Bashmakov, R.A., Isaev, K.P., Yulmukhametov, R.S.: On geometric characteristics of convex functions and Laplace integrals. Ufimskij Matem. Zhurn. 2(1), 3–16 (2010). ((in Russian))
Lutsenko, V.I., Yulmukhametov, R.S.: Generalization of the Paley–Wiener theorem in weighted spaces. Math. Notes 48(5), 1131–1136 (1990). https://doi.org/10.1007/BF01236300
Isaev, K.P., Yulmukhametov, R.S.: Unconditional bases in radial Hilbert spaces. Vladikavkaz. Matem. Zhurn. 22(3), 85–99 (2020). https://doi.org/10.46698/q8093-7554-9905-q. (in Russian)
Isaev, K.P., Yulmukhametov, R.S.: On a sufficient condition for the existence of unconditional bases of reproducing kernels in Hilbert spaces of entire functions. Lobachevskii J. Math. 42(6), 1154–1165 (2021). https://doi.org/10.1134/S1995080221060093
Isaev, K.P., Yulmukhametov, R.S.: Geometry of radial Hilbert spaces with unconditional bases of reproducing kernels. Ufa Math. J. 12(4), 55–63 (2020). https://doi.org/10.13108/2020-12-4-55
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The research was supported by the grant of Russian Science Foundation (project no. 21-11-00168)
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Isaev, K.P., Yulmukhametov, R.S. Riesz bases of normalized reproducing kernels in Fock type spaces. Anal.Math.Phys. 12, 11 (2022). https://doi.org/10.1007/s13324-021-00623-z
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DOI: https://doi.org/10.1007/s13324-021-00623-z