6 citations · 34 across the 38 of their papers we have counts for
4 papers · 1 filter
On a class of random sets of positive integers
Yong Han, Yanqi Qiu, Zipeng Wang
In this note, we study a class of random subsets of positive integers induced by Bernoulli random variables. We obtain sufficient conditions such that the random set is almost sure…
The metric projections onto closed convex cones in a Hilbert space
Yanqi Qiu, Zipeng Wang
We study the metric projection onto the closed convex cone in a real Hilbert space generated by a sequence . The first main result…
Rigidity of determinantal point processes on the unit disc with sub-Bergman kernels
Yanqi Qiu, Kai Wang
We give natural constructions of number rigid determinantal point processes on the unit disc with sub-Bergman kernels of the form \[ K_Λ(z, w) = \sum_{n\in Λ}(n+1) z^n…
Hyper-positive definite functions II: A complete study of branching-Toeplitz operators
Yanqi Qiu, Zipeng Wang
We introduce and give a more or less complete study of a family of branching-Toeplitz operators on the Hilbert space indexed by a rooted homogeneous tree of deg…