2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/102277We construct motivic versions of the classical tubular neighborhood and the punctured tubular neighborhood, and give applications to the construction of tangential base-points for mixed Tate motives, algebraic gluing of curves with boundary components, and limit motives.This version repairs an error from the original version, yielding a monodromy sequence for theories with rational coefficients which satisfy an "alternating" condition. There are additional minor corrections and improvementsAlgebraic GeometryAlgebraic Topology14C25(primary); 55P42, 18F20, 14F42 (secondary)text