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Results tagged with gt.geometric-topology
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user 5878
Topology of cell complexes and manifolds, classification of manifolds (e.g. smoothing, surgery), low dimensional topology (e.g. knot theory, invariants of 4-manifolds), embedding theory, combinatorial and PL topology, geometric group theory, infinite dimensional topology (e.g. Hilbert cube manifolds, theory of retracts).
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How many types of jigsaw puzzle pieces in n dimensions?
I was partitioning jigsaw puzzle pieces with some friends yesterday and we noticed that there are 6 types of pieces:
All 4 sides have a knobby bit sticking out
1 side has a knobby bit sticking out
2 …
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