Brill–Noether theory of squarefree modules supported on a graph
Peer reviewed, Journal article
MetadataShow full item record
Original versionJournal of Pure and Applied Algebra 217(5): 803–818 https://doi.org/10.1016/j.jpaa.2012.09.010
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 theorem.