数学物理学报(英文版) ›› 2021, Vol. 41 ›› Issue (3): 657-669.doi: 10.1007/s10473-021-0301-3
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陈泳1, Kei Ji IZUCHI2, Kou Hei IZUCHI3, Young Joo LEE4
Yong CHEN1, Kei Ji IZUCHI2, Kou Hei IZUCHI3, Young Joo LEE4
摘要: We consider Toeplitz operators Tu with symbol u on the Bergman space of the unit ball, and then study the convergences and summability for the sequences of powers of Toeplitz operators. We first charactreize analytic symbols φ for which the sequence T∗kφf or Tkφf converges to 0 or ∞ as k→∞ in norm for every nonzero Bergman function f. Also, we characterize analytic symbols φ for which the norm of such a sequence is summable or not summable. We also study the corresponding problems on an infinite direct sum of Bergman spaces as a generalization of our result.
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