A note on equality on plurifinely open sets of some complex Monge-Ampère measures

Abstract: Our aim in this paper is to prove that if plurisubharmonic functions $u_1,. . . , u_n$, $v_1,. . ., v_n$ in the domain of definition of the complex Monge-Amp`ere operator on a domain set $D\subset \mathbb{C}^n$ ($n\geq 1$) are such that $u_1= v_1, . . ., u_n=v_n$ on a Borel plurifinely open set $\Omega\subset D$, then $$dd^cu_1\wedge...\wedge dd^cu_n=dd^cv_1\wedge...\wedge dd^cv_n$$ on $\Omega$. This extends an earlier result obtained by the author in \cite{EK}.