Visual-topology invariance for stabilized dLd_L-metrics

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Let GG act geometrically on two CAT⁡(0)\operatorname{CAT}(0) spaces YY and Y′Y' whose dLd_L-metrics stabilize. Let ∂MκY\partial_M^{\kappa}Y and ∂MκY′\partial_M^{\kappa}Y' denote their κ\kappa-Morse boundaries. Stabilized dLd_L-metric conjecture. The unique GG-equivariant map

∂MκY→∂MκY′\partial_M^{\kappa}Y \rightarrow \partial_M^{\kappa}Y'

is a homeomorphism with respect to the visual topology. This would extend the visual-topology invariance theorem from CAT(0) cube complexes with factor systems to the stated class of CAT(0) spaces; the source refers to ongoing work of Petyt, Spriano, and Zalloum for the stabilization condition, and the conjecture remains open.

References

Primary source

Carolyn Abbott and Merlin Incerti-Medici, “Hyperbolic projections and topological invariance of sublinearly Morse boundaries”, arXiv:2212.09539 (2022).

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