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math.GR2026
Virtual specialness of the double
Changqian Li
Let be a virtually compact special Gromov-hyperbolic group. We prove that the double along a quasiconvex subgroup is virtually compact special. More generally, we…
math.GR2026
Finite Stature in Graphs of Cube Complexes with Cyclonormal Edges
Changqian Li
Given a compact cube complex that splits as a graph of virtually special cube complexes. Suppose that the fundamental groups of edge spaces are cyclonormal in the fundamental g…