Affiner les résultats

Type de document


Collection spécifique



Mot clé

    Université de Fribourg

    Binomial edge ideals of bipartite graphs

    Bolognini, Davide ; Macchia, Antonio ; Strazzanti, Francesco

    In: European Journal of Combinatorics, 2018, vol. 70, p. 1–25

    Binomial edge ideals are a noteworthy class of binomial ideals that can be associated with graphs, generalizing the ideals of 2-minors. For bipartite graphs we prove the converse of Hartshorne’s Connectedness Theorem, according to which if an ideal is Cohen–Macaulay, then its dual graph is connected. This allows us to classify Cohen–Macaulay binomial edge ideals of bipartite graphs, giving...