It is shown that if f1,…,fn are
pluriharmonic functions on a strictly pseudoconvex domain Ω ⊂ ℂn that are C1
on Ω, and the n × n matrix (∂fj∕∂zk) is invertible at every point of Ω,
then the norm-closed algebra generated by A(Ω) and f1,…,fn is equal to
C(Ω).