Network flows: theory, algorithms, and applications
Network flows: theory, algorithms, and applications
A new lower bound for the critical probability of site percolation on the square lattice
Random Structures & Algorithms
Bond percolation critical probability bounds for three Archimedean lattices
Random Structures & Algorithms
Upper and Lower Bounds for the Kagomé Lattice Bond Percolation Critical Probability
Combinatorics, Probability and Computing
An Improved Upper Bound for the Hexagonal Lattice Site Percolation Critical Probability
Combinatorics, Probability and Computing
Using Symmetry to Improve Percolation Threshold Bounds
Combinatorics, Probability and Computing
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We describe how non-crossing partitions arise in substitution method calculations. By using efficient algorithms for computing non-crossing partitions we are able to substantially reduce the computational effort, which enables us to compute improved bounds on the percolation thresholds for three percolation models. For the Kagomé bond model we improve bounds from $0.5182 \leq p_c \leq 0.5335$ to $0.522197 \leq p_c \leq 0.526873$, improving the range from 0.0153 to 0.004676. For the $(3,12^2)$ bond model we improve bounds from $0.7393 \leq p_c \leq 0.7418$ to $0.739773 \leq p_c \leq 0.741125$, improving the range from 0.0025 to 0.001352. We also improve the upper bound for the hexagonal site model, from 0.794717 to 0.743359.