  In this paper, we unfold balanced and totally balanced neighborhood
hypergraphs to discover new classes of normally torsion-free monomial ideals.
As a consequence, we establish that the closed neighborhood ideals and the
dominating ideals of strongly chordal graphs are normally torsion-free. We
discuss the stable sets of associated primes of the dominating ideals of cycles
and characterize all the cycles with normally torsion-free dominating ideals.
