Abstract
We investigate the virtual specialness of a compact cube complex X that splits as a graph of nonpositively curved cube complexes. We prove virtual specialness of X when each vertex space of X has word-hyperbolic \(\pi _1\) and \(\pi _1X\) has “finite stature” relative to its edge groups. The results generalize the motivating case when tree \(\times \) tree lattices are virtual products.
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Huang, J., Wise, D.T. Virtual specialness of certain graphs of special cube complexes. Math. Ann. 388, 329–357 (2024). https://doi.org/10.1007/s00208-022-02527-0
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DOI: https://doi.org/10.1007/s00208-022-02527-0