Axel Werner (ZIB Berlin)

2009/06/05

at FU Berlin

We'll define $f$- and flag vectors (mainly of polytopes), consider a few examples and see why 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' polytpes and see some maps of 3-, 4- and 5-dimensional polytopes.