Abstract
An application of constructions from so-called Bass-Serre theory to group spaces in noncommutative geometry is discussed motivated by the question how to make “visible” the interplay of different structures coming together in the notion of a group space. A compact summary of basic notions and constructions from Bass-Serre theory up to the structure theorem is developed; it should serve as a brief guideline for further applications. Concluding prospects indicate a way for generalizing the methods from a categorical point of view.
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Dedicated to Professor Johannes André on the occasion of his 70th birthday
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Pfalzgraf, J. Graph products of groups and group spaces. J Geom 53, 131–147 (1995). https://doi.org/10.1007/BF01224046
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DOI: https://doi.org/10.1007/BF01224046