2 papers
math.FA2014
A note on linear approximately orthogonality preserving mappings
Ye Zhang, Yanni Chen, Don Hadwin +1
In this paper, linear -orthogonality preserving mappings are studied. We define as the smallest for which is $\var…
math.FA2014
Lebesgue and Hardy Spaces for Symmetric Norms II: A Vector-Valued Beurling Theorem
Yanni Chen, Don Hadwin, Ye Zhang
Suppose is a rotationally symmetric norm on and is a "nice" norm on where is a -finite measure on…