Complete Intersection Toric Ideals of Oriented Graphs and Chorded-Theta Subgraphs

I. Gitler, E. Reyes, J. A. Vega

Let $G=(V,E)$ be a finite, simple graph. We consider for each oriented graph $G_{\mathcal{O}}$ associated to an orientation $\mathcal{O}$ of the edges of $G$, the toric ideal $P_{G_{\cal O…