%0 Journal Article %T A partial order structure on interval orders %A Filippo Disanto %A Luca Ferrari %A Simone Rinaldi %J Computer Science %D 2012 %I arXiv %X We introduce a partial order structure on the set of interval orders of a given size, and prove that such a structure is in fact a lattice. We also provide a way to compute meet and join inside this lattice. Finally, we show that, if we restrict to series parallel interval order, what we obtain is the classical Tamari poset. %U http://arxiv.org/abs/1203.5948v1