1. CMB 2012 (vol 57 pp. 113)
 Madras, Neal

A Lower Bound for the EndtoEnd Distance of SelfAvoiding Walk
For an $N$step selfavoiding walk on the hypercubic lattice ${\bf Z}^d$,
we prove that the meansquare endtoend distance is at least
$N^{4/(3d)}$ times a constant.
This implies that the associated critical exponent $\nu$ is
at least $2/(3d)$, assuming that $\nu$ exists.
Keywords:selfavoiding walk, critical exponent Categories:82B41, 60D05, 60K35 

2. CMB 2010 (vol 53 pp. 614)
 Böröczky, Károly J.; Schneider, Rolf

The Mean Width of Circumscribed Random Polytopes
For a given convex body $K$ in ${\mathbb R}^d$, a random polytope
$K^{(n)}$ is defined (essentially) as the intersection of $n$
independent closed halfspaces containing $K$ and having an isotropic
and (in a specified sense) uniform distribution. We prove upper and
lower bounds of optimal orders for the difference of the mean widths
of $K^{(n)}$ and $K$ as $n$ tends to infinity. For a simplicial
polytope $P$, a precise asymptotic formula for the difference of the
mean widths of $P^{(n)}$ and $P$ is obtained.
Keywords:random polytope, mean width, approximation Categories:52A22, 60D05, 52A27 
