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math.GR2020
Good stackings, bislim structures, and invariant staggerings
Jacob Bamberger, David Carrier, Jonah Gaster +1
Two seemingly different properties of 2-complexes were developed concurrently as criteria for the nonpositive immersion property: 'good stackings' and 'bislim structures'. We estab…
math.GR2018
Bicollapsibility and groups with torsion
Jonah Gaster, Daniel T. Wise
We introduce the notion of a bicollapsible 2-complex. This allows us to generalize the hyperbolicity of one-relator groups with torsion to a broader class of groups with presentati…