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arxiv: 1912.03396 · v1 · pith:6HCDJ74Inew · submitted 2019-12-06 · 🧮 math.CO

Laurent polynomials of planar graphs

classification 🧮 math.CO
keywords graphslaurentplanarpolynomialsallowingalon-tarsideterminingexisting
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By using Laurent graph polynomials instead of the usual ones, i.e. by allowing negative powers of the variables, we simplify an existing method of determining the Alon-Tarsi numbers of planar graphs.

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