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Characterization of Morse geodesics without the affine-free hypothesis

Prove that for every Coxeter group, a geodesic ray in the Davis complex is Morse if and only if there exists a constant K such that any subpath of length greater than K does not have its label contained in a wide induced subgraph of the Coxeter graph, equivalently if and only if the ray spends uniformly bounded time in cosets of wide special subgroups.

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Background

The paper proves this equivalence for affine-free Coxeter groups (Theorem \ref{thm:intro_thm_morse_char}), identifying a dynamical characterization of Morse geodesics via bounded time spent in wide special subgroups.

Extending this to all Coxeter groups would remove the affine-free restriction and yield a uniform criterion for Morse geodesics across the entire Coxeter class.

References

We conjecture that Theorem~\ref{thm:intro_thm_morse_char} holds for all Coxeter groups, not just affine-free ones.

Connectivity of Coxeter group Morse boundaries (2503.14085 - Cordes et al., 18 Mar 2025) in Introduction, following Theorem \ref{thm:intro_thm_morse_char}