Reduced systems conjecture for blow-ups of Hirzebruch surfaces

Let Fe,r\mathbb{F}_{e,r} be the blow-up of a Hirzebruch surface Fe\mathbb{F}_e at very general points, and let C~e\widetilde{C}_e be the strict transform of its negative section. A non-empty linear system L\mathcal{L} is reduced when its general curve is reduced, and C~e\widetilde{C}_e is not a fixed component when every member does not contain it as a fixed component. Reduced systems conjecture. If the general curve of a non-empty linear system L\mathcal{L} on Fe,r\mathbb{F}_{e,r} is reduced and C~e\widetilde{C}_e is not a fixed component of L\mathcal{L}, then L\mathcal{L} is non-special. The paper states that Laface's conjecture implies this conjecture, but the supplied text gives no resolution of either claim.

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Primary source

Krishna Hanumanthu, Cyril J. Jacob, Suhas B. N. and Amit Kumar Singh, “Seshadri constants on blow-ups of Hirzebruch surfaces”, arXiv:2312.14555 (2024).

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