Triangular lattice
= Triangular lattice
The planar <graph> with vertices $\{a(1,0)+b(1/2,\sqrt3/2):a,b\in\mathbb Z\}$ and <edges> between vertices at Euclidean distance one. Every <vertex of a graph> has six neighbors. Its <site percolation> model is a particularly tractable setting for <conformal invariance of planar percolation>.