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Deformation Theory Seminar

Wednesday, April 4, 2012 - 1:00pm

Günter M. Ziegler

FU Berlin

Location

University of Pennsylvania

DRL TBA

Note time change and possible room change

G Starting from an "interesting, and surprisingly resistant" problem about cutting polygons and arrive at a question about equivariant maps of configuration spaces. We construct a cell complex model for F(R^2,n) whose cells are permutahedra - and use this to apply equivariant obstruction theory.