Unitary Numerical Semigroups and Perfect Bricks

@inproceedings{Holcomb2009UnitaryNS,
  title={Unitary Numerical Semigroups and Perfect Bricks},
  author={Trae D. Holcomb and Kurt D Herzinger},
  year={2009}
}
This article completes a previous investigation of balanced and unitary numerical semigroups. The main result establishes the equivalence of unitary numerical semigroups and perfect 2 × 2 bricks.