The Minimal Resolution Conjecture for syzygies of general curves

Let CC be a curve of genus gg, and let LWdr(C)L\in W^r_d(C) be a complete base-point-free linear series, with p1p\geq1. Let Kp,1(C,L)K_{p,1}(C,L) denote the relevant Koszul cohomology group, and let

ρ(g,r,d)=g(r+1)(gd+r).\rho(g,r,d)=g-(r+1)(g-d+r).

Minimal Resolution Conjecture. Fix integers g,r,d,p1g,r,d,p\geq1 such that gd+r0g-d+r\geq0, and assume

r1[g12]pdg+1r-1-\left[\frac{g-1}{2}\right]\leq p\leq d-g+1

and

(rp1)(dr(p1)+2d+1g(r+1)(r+2)p+1)+1>ρ(g,r,d).{r\choose p-1}\left(-\frac{d}{r}(p-1)+2d+1-g-\frac{(r+1)(r+2)}{p+1}\right)+1>\rho(g,r,d).

Then for a general curve [C]Mg[C]\in\mathcal{M}_g, one has Kp,1(C,L)=0K_{p,1}(C,L)=0 for every LWdr(C)L\in W^r_d(C). This is intended as a wide-ranging common generalization of the maximal rank conjecture and Green's conjecture; its canonical specialization was known by Voisin, while the general statement remains open.

Sources & referencesView supporting material

Primary source

Gavril Farkas and Angela Ortega, “The maximal rank conjecture and rank two Brill-Noether theory”, arXiv:1010.4060 (2010).

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