2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/146815Every normal toric ideal of codimension two is minimally generated by a Grobner basis with squarefree initial monomials. A polynomial time algorithm is presented for checking whether a toric ideal of fixed codimension is normal.Commutative AlgebraAlgebraic Geometry13P10, 52C07, 90C11text