Asymptotic regularity conjecture for initial ideals of binomial edge ideals

Let GG be an enumerated graph. Let \ell be the length of the longest induced path in GG, and let <\ell_{<} be the length of the longest admissible path in GG. Write gin(JG)\operatorname{gin}(J_G) for the generic initial ideal of the binomial edge ideal JGJ_G, and in<(JG)\operatorname{in}_{<}(J_G) for its initial ideal with respect to the indicated enumeration-dependent order. Asymptotic regularity conjecture.

reg^(gin(JG))=,\widehat{\operatorname{reg}}(\operatorname{gin}(J_G))=\ell, reg^(in<(JG))=<.\widehat{\operatorname{reg}}(\operatorname{in}_{<}(J_G))=\ell_{<}.

These equalities are motivated by lower bounds from induced and admissible paths. The authors state that they are not aware of any graph for which equality fails, but the conjecture remains unresolved in the supplied text.

Sources & referencesView supporting material

Primary source

Dennis Belotserkovskiy, Mariana Landín, Charlie Ruppe and Lizzy Teryoshin, “Asymptotic invariants of symbolic powers of binomial edge ideals”, arXiv:2510.14272 (2025).

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