Asymptotic equality frequencies for Hilbert depths of path and cycle ideals

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Let SS, InI_n, and JnJ_n be as above, and for each NN let #{n≤N: P(n)}\#\{n\leq N:\,P(n)\} denote the number of positive integers n≤Nn\leq N satisfying P(n)P(n). Hilbert-depth frequency conjecture.

lim⁡N→∞#{n≤N: hdepth⁡(S/In)=hdepth⁡(S/Jn)}N=23,\lim_{N\to\infty}\frac{\#\{n\leq N:\,\operatorname{hdepth}(S/I_n)=\operatorname{hdepth}(S/J_n)\}}{N}=\frac23,

and

lim⁡N→∞#{n≤N: hdepth⁡(In)=hdepth⁡(Jn)}N=56.\lim_{N\to\infty}\frac{\#\{n\leq N:\,\operatorname{hdepth}(I_n)=\operatorname{hdepth}(J_n)\}}{N}=\frac56.

The source presents these limits as further proposals after reporting verification of the preceding conjecture for n≤1000n\leq 1000; no proof or disproof of either asymptotic assertion is reported.

References

Primary source

Andreea I. Bordianu and Mircea Cimpoeas, “On the Stanley depth and Hilbert depth of some classes of edge ideals of graphs”, arXiv:2411.10844 (2024).

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