%0 Journal Article
%T Del Pezzo moduli via root systems
%A Elisabetta Colombo
%A Bert van Geemen
%A Eduard Looijenga
%J Mathematics
%D 2007
%I arXiv
%X Coble defined in his 1929 treatise invariants for cubic surfaces and quartic curves. We reinterpret these in terms of the root systems of type E_6 and E_7 that are naturally associated to these varieties, thereby giving some of his results a more intrinsic treatment. Our discussion is uniform for all Del Pezzo surfaces of degree 2,3,4 and 5.
%U http://arxiv.org/abs/math/0702442v1