114 citations · 433 across the 17 of their papers we have counts for
17 papers
On the Schur-Agler Norm
Michael Hartz, Yi Wang
We establish a new description of the Schur-Agler norm of a holomorphic function on the polydisc as the solution of a convex optimization problem. Consequences of this description…
Operator Models via Compact Embedding
Dexie Lin, Yi Wang
In this paper, we extend several function-theoretic and geometric constructions to the realm of multi-variable operator theory. A commuting tuple of bounded linear operators on a H…
Yet another criterion for the total positivity of Riordan arrays
Jianxi Mao, Lili Mu, Yi Wang
Let be a Riordan array, where and . We show that if the matrix \begin{equation*} \left[\begin{array}…
The converse of Weyl's eigenvalue inequality
Yi Wang, Sainan Zheng
We establish the converse of Weyl's eigenvalue inequality for additive Hermitian perturbations of a Hermitian matrix.
Inertia indices and eigenvalue inequalities for Hermitian matrices
Sai-Nan Zheng, Xi Chen, Lily Li Liu +1
We present a characterization of eigenvalue inequalities between two Hermitian matrices by means of inertia indices. As applications, we deal with some classical eigenvalue inequal…
Log-convex and Stieltjes moment sequences
Yi Wang, Bao-Xuan Zhu
We show that Stieltjes moment sequences are infinitely log-convex, which parallels a famous result that (finite) Pólya frequency sequences are infinitely log-concave. We introduce…