%0 Journal Article %T Koszul cohomology and singular curves %A Edoardo Ballico %A Claudio Fontanari %A Luca Tasin %J Mathematics %D 2009 %I arXiv %X We investigate Koszul cohomology on irreducible nodal curves. In particular, we prove both Green and Green-Lazarsfeld conjectures for the general k-gonal nodal curve. %U http://arxiv.org/abs/0909.2964v3