2 papers
math.CA2026
The Kozlov completeness problem
Hui Dan, Kunyu Guo
This paper concerns a long-standing problem raised by Kozlov on completeness of the dilation systems generated by odd periodic extension…
math.FA2025
The spectral picture of Bergman Toeplitz operators with harmonic polynomial symbols
Kunyu Guo, Xianfeng Zhao, Dechao Zheng
In this paper, it is shown that some new phenomenon related to the spectra of Toeplitz operators with bounded harmonic symbols on the Bergman space. On the one hand, we prove that…