Lieb's Ice Constant


Counting 3-colorings of the hex lattice ★★

Author(s): Thomassen

\begin{problem} Find $\lim_{n \rightarrow \infty} (\chi( H_n , 3)) ^{ 1 / |V(H_n)| }$. \end{problem}

Keywords: coloring; Lieb's Ice Constant; tiling; torus

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