Originally Published In
Concrete Operators. Volume 3, Issue 1, Pages 15–24, ISSN (Online) 2299-3282, DOI: 10.1515/conop-2016-0003, April 2016
We discuss non commutative functions, which naturally arise when dealing with functions of more than one matrix variable.
Agler, Jim and McCarthy, John E., "Aspects of non-commutative function theory" (2016). Mathematics Faculty Publications. 32.