1 citations · 1 across the 3 of their papers we have counts for
4 papers
Compression of enumerations and gain
George Barmpalias, Xiaoyan Zhang, Bohua Zhan
We study the compressibility of enumerations in the context of Kolmogorov complexity, focusing on strong and weak forms of compression and their gain: the amount of auxiliary infor…
Composition operators on weighted spaces of a tree
Han Xu, Xiaoyan Zhang
In this paper, we study the boundedness, compactness and Schatten class membership of composition operators on the weighted -space of a tree with $1\leq p <\inf…
Toeplitz operators on -spaces of a tree
Mingmei Huang, Xiaoyan Zhang, Xianfeng Zhao
Let be a rooted, countable infinite tree without terminal vertices. In the present paper, we characterize the spectra, self-adjointness and positivity of Toeplitz operators on…
Test Map and Discreteness Criteria for Subgroups in PU(1,n;C)
ChangJun Li, XiaoYan Zhang
We study the discreteness for non-elementary subgroup G in PU(1, n;C), under the assumption that G satisfies Condition A. Mainly, we present that one can use a test map, which need…