Positive-drift conjecture for higher-order environment derivatives

About 1 year old · traced to

Fix k≥2k\geq 2. Let SS be a reasonable set of kk edges, and let ∂Sf\partial_S f be its environment derivative. The conjecture concerns every positive value mm in the discrete range of this derivative.

Positive-drift conjecture. There exists θk∈(0,1)\theta_k\in(0,1) such that, for most reasonable kk-edge sets SS and every positive mm,

P(∂Sf=−m)≤θkP(∂Sf=m).\mathbb P(\partial_S f=-m)\leq\theta_k\mathbb P(\partial_S f=m).

This one-sided comparison would imply that E[∂Sf]\mathbb E[\partial_S f] is comparable to P(∂Sf≠0)\mathbb P(\partial_S f\neq 0) for the relevant sets. The notion of “most reasonable” sets is informal in the supplied text.

References

Primary source

Ivan Matic, Rados Radoicic and Dan Stefanica, “Higher-order derivatives of first-passage percolation with respect to the environment”, arXiv:2504.08935 (2026).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.