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

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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.

References

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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