Pardue's Conjecture E on generic initial ideals

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Let KK be a field, let R=K[x1,…,xn]R=K[x_1,\ldots,x_n], and let I=(f1,…,fn)I=(f_1,\ldots,f_n) be a generic homogeneous ideal of type (n;d1,…,dn)(n;d_1,\ldots,d_n). Let in⁡(I)\operatorname{in}(I) be the initial ideal in the degree reverse lexicographic order. For a monomial xαx^\alpha, define max⁡(xα)\max(x^\alpha) to be the largest index ii such that xix_i divides xαx^\alpha. Pardue's conjecture. If xμx^\mu is a minimal generator of in⁡(I)\operatorname{in}(I) and max⁡(xμ)=m\max(x^\mu)=m, then every monomial of the same degree in the variables x1,…,xm−1x_1,\ldots,x_{m-1} belongs to in⁡(I)\operatorname{in}(I). This conjecture is presented as a consequence of Moreno-Socías's conjecture and as equivalent, after Pardue's modification, to Fröberg's conjecture; its general resolution is not supplied here.

References

Primary source

Van Duc Trung, “The initial ideal of generic sequences and Fröberg's Conjecture”, arXiv:1803.04997 (2025).

Additional references

3 papers in this index state this conjecture (2017–2018). The statement above is taken from the most recent of them; the others are arXiv:1711.01232, arXiv:1711.05309.

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