2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/193625The Wilson effective action for general Yang-Mills gauge theory is shown to satisfy the usual form of Batalin-Vilkovisky (BV) master equation, despite that a momentum cutoff apparently breaks the gauge invariance. In the case of Abelian gauge theory, in particular, it actually deduces the Ward-Takahashi identity for Wilson action recently derived by Sonoda.12 pages; Note added, references addedHigh Energy Physics - Theorytext