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Tropical Seminar: "Tropicalised Reparameterisations" September 18, 2009
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Location: MSRI: Baker Board Room
Speaker(s) Dr. Jan Draisma
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Given a classical polynomial map f:A^m->A^n between affine spaces parameterising a variety X=im(f), it is natural to wonder whether there is a coordinate change a:A^p->A^n such that the the composition f o a tropicalises naively (that is, by replacing + by min and x by +) to a tropical polynomial map whose image is all of trop(X). This has the appealing interpretation that trop(X) can be "folded" from a piece of p-dimensional paper. I will give some (known) examples where this is the case, and prove the existence of coordinate changes that are good locally.

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