2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/220804We discuss an analysis presented by N. Berkovits in [arXiv:0712.0324] in the context of classical mechanics and perform its extension to the case of pure spinor string in general background.24 pages, references addedHigh Energy Physics - TheoryNote About Redefinition of BRST Operator for Pure Spinor String in General Backgroundtext