\input zb-basic
\input zb-ioport
\iteman{io-port 04212096}
\itemau{Shepp, L.A.}
\itemti{Connectedness of certain random graphs.}
\itemso{Isr. J. Math. 67, No.1, 23-33 (1989).}
\itemab
Random graphs on $\{$ 1,2,...$\}$ with edge probabilities $p\sb{ij}=\lambda /\max (i,j)$ are shown to have $\lambda =1/4$ as a critical value for connectedness.
\itemrv{O.Frank}
\itemcc{}
\itemut{infinite random graphs; critical value for connectedness}
\itemli{doi:10.1007/BF02764896}
\end