MATH Seminar
| Title: Symmetric chain decompositions of quotients of partially ordered sets |
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| Seminar: Combinatorics |
| Speaker: Dwight Duffus of Emory University |
| Contact: Dwight Duffus, dwight@mathcs.emory.edu |
| Date: 2011-09-02 at 4:00PM |
| Venue: W306 |
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| Abstract: Given a subgroup G of the automorphism group of a partially ordered set P, the quotient P/G has as its elements the orbits in P under G with ordering induced by that of P. Canfield and Mason have suggested that for the Boolean lattice of all subsets of a finite set and any subgroup of its automorphism group, these quotients are symmetric chain orders. With Jeremy McKibben-Sanders and Kyle Thayer, we have shown this to be true in some special cases. |
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