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An alternative definition of coarse structures. (English) Zbl 1145.54032
Authors’ summary: J. Roe [Lectures on Coarse Geometry. University Lecture Series, vol. 31, Amer. Math. Soc., Providence, RI (2003; Zbl 1042.53027)] introduced coarse structures for arbitrary sets $$X$$ by considering subsets of $$X\times X$$. In this paper we introduce large scale structures on $$X$$ via the notion of uniformly bounded families and we show their equivalence to coarse structures on $$X$$. That way all basic concepts of large scale geometry (asymptotic dimension, slowly oscillating functions, Higson compactification) have natural definitions and basic results from metric geometry carry over to coarse geometry.

##### MSC:
 54F45 Dimension theory in general topology 54C55 Absolute neighborhood extensor, absolute extensor, absolute neighborhood retract (ANR), absolute retract spaces (general properties) 54E35 Metric spaces, metrizability 18B30 Categories of topological spaces and continuous mappings (MSC2010) 54D35 Extensions of spaces (compactifications, supercompactifications, completions, etc.) 54D40 Remainders in general topology 20H15 Other geometric groups, including crystallographic groups
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##### References:
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