Factorization conjecture for quasi-isometries through collapsing maps

From papers

Let (X,dX)(X,d_X) and (Y,dY)(Y,d_Y) be metric spaces, and let a quasi-isometry mean a map satisfying the usual multiplicative and additive coarse bounds. A collapsing map is a map obtained by collapsing a subset via an equivalence relation, and a Lipschitz map is a map with a linear distance bound.

Factorization conjecture. Any quasi-isometry can be expressed as the composition of a collapsing map and Lipschitz map.

This conjecture proposes that quasi-isometries, including canonical examples such as the floor function, admit a factorization into elementary collapsing and Lipschitz operations. The source gives no resolution or further hypotheses.

Progress summary

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

Sources & referencesView supporting material

Primary source

Josh Thompson and Davin Hemmila, “Collapsing Maps and Quasi-Isometries”, arXiv:2202.05915 (2022).

Solutions 0

No solutions have been posted yet.