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arxiv: 1805.09778 · v2 · pith:WDK2GBPOnew · submitted 2018-05-24 · 🧮 math.CO

Enumeration of border-strip decompositions & Weil-Petersson volumes

classification 🧮 math.CO
keywords border-stripdecompositionsenumerationinjectionweil-peterssonallowsanaloguescertain
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We describe an injection from border-strip decompositions of certain shapes to permutations. This allows us to provide enumeration results, as well as $q$-analogues of enumeration formulas. Finally, we use this injection to prove a connection between the number of border-strip decompositions of the $n\times 2n$ rectangle and the Weil-Petersson volume of the moduli space of an $n$-punctured Riemann sphere.

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