Complete Norm Preserving Extensions of Holomorphic Functions
Complex Variables
2022-04-20 v1
Abstract
We show that for every connected analytic subvariety there is a pseudoconvex set such that every bounded matrix-valued holomorphic function on extends isometrically to . We prove that if is two analytic disks intersecting at one point, if every bounded scalar valued holomorphic function extends isometrically to , then so does every matrix-valued function. In the special case that is the symmetrized bidisk, we show that this cannot be done by finding a linear isometric extension from the functions that vanish at one point.
Cite
@article{arxiv.2204.08521,
title = {Complete Norm Preserving Extensions of Holomorphic Functions},
author = {Jim Agler and Lukasz Kosinski and John E. McCarthy},
journal= {arXiv preprint arXiv:2204.08521},
year = {2022}
}