arXiv subjects

Wang Gongbao

Publications and source records attributed to Wang Gongbao.

2 recordsLinked to original sources

arXiv2003

Note on Near Subnormal Weighted Shifts

In this note, necessary and sufficient conditions are obtained for unilateral weighted shifts to be near subnormal . As an application of the main results, many answers to the Hilbert space problem 160 are presented at the end of the paper.

math.FA↗

arXiv2003

Spectral Characterization of Hyponormal Weighted Shifts

The complete characterizations of the spectra and their various parts of hyponormal unilateral and bilateral weighted shifts are presented respectively in this paper. The results obtained here generalize the corresponding work of the references.

math.FA↗