Topology and Groups by Marc Lackenby
ID: topology-and-groups-by-marc-lackenby
By Marc Lackenby.
Author-hosted lecture notes: people.maths.ox.ac.uk/lackenby/tg050908.pdf
Definitions I.17–I.18, printed pp. 8–9, describe an abstract simplicial complex and its topological realization by gluing labelled faces of standard simplexes.
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