What is… a flag vector?
This page hosts information on Axel Werner's talk "What is … a flag vector?" at the WhatIsSeminar.Abstract
We'll define f- and flag vectors (mainly of polytopes), consider a few examples and see why the flag vectors of polytopes span a space of affine dimension given by the Fibonacci numbers. If time permits, we'll also consider linear inequalities for the flag vectors which can be used to 'map' polytopes and see some maps of 3-, 4- and 5-dimensional polytopes.
Video
A video of Axel's talk with integrated slides can be found at http://www.scivee.tv/node/11517 .Comments
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