Abstract
The authors have used generalised Galois Theory to construct a homotopy double groupoid of a surjective fibration of Kan simplicial sets. Here we apply this to construct a new homotopy double groupoid of a map of spaces, which includes constructions by others of a 2-groupoid, cat1-group or crossed module. An advantage of our construction is that the double groupoid can give an algebraic model of a foliated bundle.
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Brown, R., Janelidze, G. Galois Theory and a New Homotopy Double Groupoid of a Map of Spaces. Applied Categorical Structures 12, 63–80 (2004). https://doi.org/10.1023/B:APCS.0000013811.15727.1a
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DOI: https://doi.org/10.1023/B:APCS.0000013811.15727.1a