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SUMMARY:José Samper (MPI MIS\, Leipzig)
DTSTART:20200416T162000Z
DTEND:20200416T165000Z
DTSTAMP:20260423T005714Z
UID:NASO/6
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/NASO/6/">Som
 e shelling orders are better than others</a>\nby José Samper (MPI MIS\, L
 eipzig) as part of Max Planck Institute nonlinear algebra seminar online\n
 \n\nAbstract\nA shelling order is a recursive way of constructing a polyhe
 dral complex that helps to understand several topological\, algebraic and 
 combinatorial invariants. Consequently\, a significant amount of effort ha
 s been put into developing techniques to determine if a given complex has 
 a shelling order. In this talk we will explore a different point of view t
 hat is less popular: for a complex that admits many shelling orders\, a go
 od choice of the shelling order can can make a significant difference. We 
 address this problem for matroid independence complexes\, present an intri
 guing connection with shelling orders of polytopes\, and discuss some expe
 riments aimed at better understanding some old problems. This is based on 
 joint work Alex Heaton.\n
LOCATION:https://researchseminars.org/talk/NASO/6/
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