2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/78483We study the masses charged by $(dd^cu)^n$ at isolated singularity points of plurisubharmonic functions $u$. It is done by means of the local indicators of plurisubharmonic functions. As a consequence, bounds for the masses are obtained in terms of the directional Lelong numbers of $u$, and the notion of the Newton number for a holomorphic mapping is extended to arbitrary plurisubharmonic functions. We also describe the local indicator of $u$ as the logarithmic tangent to $u$.21 pages, LaTeXComplex Variables32F05, 32F07Newton Numbers and Residual Measures of Plurisubharmonic Functionstext