Pure Maths Colloquium: Codimension 1 singularities and good real pictures
7 November 2005 16:00 in CM221
"In the transition between neighbouring stable geometrical configurations (e.g.generic planar projections of knots) one observes codimension 1 singularities. Associated to each, at least in complex geometry, there is (usually) a "vanishing cycle". This may appear in different dimensions in different real versions of the same complex singularity. The talk looks at a wide range of examples, with many drawings, and shows how these higher dimensional Reidemeister moves combine and proliferate."
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