On the critical infection rate of the one-dimensional basic contact process: Numerical results

Instead of the basic contact process on >∼ with infection rate λ the authors consider for m≥0 the Markov process starting with ξ0(k)=1 for k≥0 and ξ0(k)=0 for k<0 and with changing only those k which are at most m places to the right of the left-most infected cell. For m=0,1,...,14 direct computations give critical values which are lower bounds for the critical value of the original basic contact process.