• Brill–Noether theory of squarefree modules supported on a graph 

      Fløystad, Gunnar; Lohne, Henning (Peer reviewed; Journal article, 2013-05)
      We investigate the analogy between squarefree Cohen- Macaulay modules supported on a graph and line bundles on a curve. We prove a Riemann–Roch theorem, we study the Jacobian and gonality of a graph, and we prove Clifford’s ...