Schreyer's geometric syzygy conjecture for canonical curves

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Let CC be a general curve of genus gg. For each relevant homological index ii, the linear syzygy space Ki,1(C,ωC)\mathrm{K}_{i,1}(C,\omega_C) consists of syzygies of rank at least i+1i+1.

Geometric Syzygy Conjecture. All linear syzygy spaces Ki,1(C,ωC)\mathrm{K}_{i,1}(C,\omega_C) are spanned by syzygies of minimal rank i+1i+1.

This is Schreyer's geometric form of the minimal syzygy conjecture: the linear syzygies of a general canonical curve should arise from the rational normal scrolls containing it. The source provides no resolution status, so the conjecture is recorded as open.

References

Primary source

Michael Kemeny and Peter Yi Wei, “The Geometric Syzygy Conjecture in Positive Characteristic”, arXiv:2509.00844 (2025).

Additional references

2 papers in this index state this conjecture (2021–2025). The statement above is taken from the most recent of them; the others are arXiv:2104.10624.

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