2020/09/24 by Mikami, Tatsuya
#82B43 #FOS: Mathematics #Probability (math.PR)
paper · doi:10.48550/arxiv.2009.11679
This paper studies the first passage percolation (FPP) model: each edge in the cubic lattice is assigned a random passage time, and consideration is given to the behavior of the percolation region B(t), which consists of those vertices that can be reached from the origin within a time t > 0. Cox and Durrett showed the shape theorem for the percolation region, saying that the normalized region B(t)/t converges to some limit shape B. This paper introduces a general FPP model defined on crystal lattices, and shows the monotonicity of the limit shapes under covering maps, thereby providing insight into the limit shape of the cubic FPP model.