%0 Journal Article %T On the score sheets of a round-robin football tournament %A Bogdan Ichim %A Julio Jos¨¦ Moyano-Fern¨˘ndez %J Mathematics %D 2015 %I arXiv %X The set of (ordered) score sheets of a round-robin football tournament played between $n$ teams together with the pointwise addition has the structure of an affine monoid. In this paper we study (using both theoretical and computational methods) the most important invariants of this monoid, namely the Hilbert basis, the multiplicity, the Hilbert series and the Hilbert function. %U http://arxiv.org/abs/1512.00533v1