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Title:
Pach's selection theorem does not admit a topological extension.

Speaker:
Martin Tancer

Link:
http://www.birs.ca/events/2016/5-day-workshops/16w5064/videos/watch/201610241115-Tancer.html

Workshop:
Birs- 16w5064: Transversal, Helly and Tverberg type Theorems in Geometry, Combinatorics and Topology III