Yanni Chen

most citedLebesgue and Hardy spaces for symmetric norms I

5 citations · 6 across the 5 of their papers we have counts for

collaborators

5 papers

math.FA2015

A General Beurling-Helson-Lowdenslager Theorem on the Disk

Yanni Chen

The classical Beurling-Helson-Lowdenslager theorem characterizes the shift-invariant subspaces of the Hardy space $H^{2}$ and of the Lebesgue space $L^{2}$ . In this paper, which is…

math.FA2014

A note on linear approximately orthogonality preserving mappings

Ye Zhang, Yanni Chen, Don Hadwin +1

In this paper, linear $ε$ -orthogonality preserving mappings are studied. We define $ε^(T)$ as the smallest $ε$ for which $T$ is $\var…

math.FA2014

Lebesgue and Hardy Spaces for Symmetric Norms II: A Vector-Valued Beurling Theorem

Yanni Chen, Don Hadwin, Ye Zhang

Suppose $α$ is a rotationally symmetric norm on $L^{\infty} (T)$ and $β$ is a "nice" norm on $L^{\infty} (Ω, μ)$ where $μ$ is a $σ$ -finite measure on…

math.OA2014★ 5 cited

Lebesgue and Hardy spaces for symmetric norms I

Yanni Chen

In this paper, we define and study a class $R_{c}$ of norms on $L^{\infty} (T)$ , called $co n t in u o u s r o t a t i o na l l y sy mm e t r i c n or m s$ , which properly…

math.OA2014★ 1 cited

Lifting Normal Elements in Nonseparable Calkin Algebras

Ye Zhang, Don Hadwin, Yanni Chen

We use the remarkable distance estimate of Ilya Kachkovskiy and Yuri Safarov, to show that if $H$ is a nonseparable Hilbert space and $K$ is any closed ideal in $B (H)$ that is not…