Syzygy conjecture for general projections of paracanonical curves

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Assume that CC is a generic paracanonical curve of genus g≥11g\geq 11, embedded by the paracanonical bundle ωC⊗η\omega_C\otimes\eta, where η\eta is a generic non-trivial torsion line bundle. Let p∈H0(ωC⊗η)∨p\in H^0(\omega_C\otimes\eta)^\vee be a generic point, and let C′C' be the projection of CC away from pp. Then the paracanonical projection conjecture. The Betti diagram of C′C' satisfies N~Cliff⁡(C)−4\widetilde{N}_{\operatorname{Cliff}(C)-4}, and the length of its linear strands is Cliff⁡(C)−3\operatorname{Cliff}(C)-3. This predicts the syzygies of general projections of paracanonical curves in genus at least 1111; the statement is presented as a conjecture and no resolution is given in the source.

References

Primary source

Li Li, “Syzygies of general projections of canonical and paracanonical curves”, arXiv:2407.08492 (2024).

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