The shared-stress-kernel witness conjecture

Let GG be a graph and let u,vV(G)u,v\in V(G) be a pair of vertices. Let K(G,p)K(G,p) denote the shared stress kernel associated with a generic realization (G,p)(G,p). Suppose that {u,v}\{u,v\} is not globally linked in GG in Rd\mathbb{R}^d. Shared-stress-kernel witness conjecture. For every generic realization (G,p)(G,p) in Rd\mathbb{R}^d, there exist real configurations q,qK(G,p)q,q'\in K(G,p) such that (G,q)(G,q) is generic, (G,q)(G,q) and (G,q)(G,q') are equivalent, but (G+uv,q)(G+uv,q) and (G+uv,q)(G+uv,q') are not equivalent. This is proposed as a possible route toward detecting non-global linkage and is left open.

Sources & referencesView supporting material

Primary source

Dániel Garamvölgyi, “Stress-linked pairs of vertices and the generic stress matroid”, arXiv:2308.16851 (2025).

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