In fact, conversion of old tanks into percolation tanks is more effective as far as the impact on groundwater is concerned.
A major focus of interest in a percolation model is the critical probability, which is viewed as a phase transition point.
We present improved lower and upper bounds for the time constant of first-passage percolation on the square lattice.
We compare the parameter values for which there exists a strategy such that the process survives to the critical parameter of ordinary percolation.
A theorem from percolation theory is relevant to the existence of such a factor with infinitely many ends.
In this way the problem of feature agreement and percolation of feature-values between nodes in a phrase structure tree is dealt with.
At any constituent, the percolation information is consulted to determine which of the constituent's children would pass the head word over to their parent.
The head percolation table determines the head child as follows.
