Let f(x) be a polynomial function. When f(a)-f(b)>0, we want to find a subtraction-free combinatorial expression for the difference. Such an expression can be given in terms of subpaths of lattice paths. Using this combinatorics, we explain positivity of cluster algebras. Speaker(s): Kyungyong Lee (University of Nebraska, Lincoln)
| Building: | Palmer Commons |
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| Event Type: | Workshop / Seminar |
| Tags: | Mathematics |
| Source: | Happening @ Michigan from Department of Mathematics, Special Events - Department of Mathematics |
