The polynomial method for 3-path extendability of list colourings of planar graphs
Przemysław Gordinowicz, Paweł Twardowski·2023-05-25·via math.CO updates on arXiv.org
We restate Thomassen's theorem of 3-extendability, an extension of the famous planar 5-choosability theorem, in terms of graph polynomials. This yields an Alon--Tarsi equivalent of 3-extendability.