Nevo–Peeva conjecture on eventual linear resolutions of gapfree graph edge ideals

Let GG be a finite simple graph with vertex set V(G)={1,,n}V(G)=\{1,\ldots,n\}, let S=K[x1,,xn]S=K[x_1,\ldots,x_n] be a polynomial ring over a field KK, and let I(G)SI(G)\subseteq S be the edge ideal generated by xixjx_ix_j for {i,j}E(G)\{i,j\}\in E(G). The graph GG is gapfree if any two disjoint edges have an edge meeting both of them. Nevo–Peeva's conjecture. If GG is gapfree, then I(G)qI(G)^q has linear resolution for all sufficiently large integers qq. This conjecture is known in several special cases, including certain small-regularity and random-graph settings, but remains unresolved in general.

Sources & referencesView supporting material

Primary source

Nursel Erey, Sara Faridi, Tài Huy Hà, Takayuki Hibi, Selvi Kara and Susan Morey, “Gapfree graphs and powers of edge ideals with linear quotients”, arXiv:2412.06467 (2024).

Additional references

2 papers in this index state this conjecture (2020–2024). The statement above is taken from the most recent of them; the others are arXiv:2003.05419.

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