2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76046We give a variant of the homogeneous Buchberger algorithm for positively graded lattice ideals. Using this algorithm we solve the Sullivant computational commutative algebra challenge.Commutative AlgebraCombinatorics13P10Homogeneous Buchberger algorithms and Sullivant's computational commutative algebra challengetext