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2026-01-03 03:34 UTC · math.GR · math.GR, math.GT

Finite Stature in Graphs of Cube Complexes with Cyclonormal Edges

Changqian Li

Given a compact cube complex $X$ that splits as a graph of virtually special cube complexes. Suppose that the fundamental groups of edge spaces are cyclonormal in the fundamental groups of adjacent vertex spaces. We show that $π_1X$ has finite stature with respect to vertex groups in the sense of Huang-Wise. In particular, when vertex groups are hyperbolic, this allows us to deduce virtual specialness of $X$.
arXiv abstractPDF

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