Generalized Frobenius bound for h-regular pairs

Let (d1,,dc;a0,,an)(d_1,\ldots,d_c;a_0,\ldots,a_n) be an hh-regular pair, and assume cnc\leq n and aiha_i\nmid h for every ii. Let Fh(a0,,an)F^h(a_0,\ldots,a_n) denote the 1h\frac{1}{h}-Frobenius number, namely the largest multiple of hh not representable as a nonnegative integer combination of the weights.

Generalized Frobenius conjecture. Then

δ(d;a)Fh(a0,,an).\delta(d;a)\geq F^h(a_0,\ldots,a_n).

For h=1h=1, this specializes to the regular-pair Frobenius conjecture attributed to Tasin. The source introduces this as the generalization to hh-regular pairs; its resolution is not stated, so the conjecture remains open.

Sources & referencesView supporting material

Primary source

Alessandro Passantino, “Effective non-vanishing for weighted complete intersections of low codimension”, arXiv:2501.13267 (2025).

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